Math 9
Math 9
abt s am epuinleneerelato.
                                     epuialen
     b R              aides
                   (a,:                      numbaw,
                                             St IK q nQal
                                        tt
     show thak He ielton R
                  toamsitye
    mnetnie        nor
                            oR               R deined ns
     show thak the nelato R
                                     mela've and hromnsi Ave but
     R= 1 (a, b): a < b
     not        mmani
        : R - - ’ R    be  a  tunetion daqned as
lb. Lat
                 s how taoat, :R-1’Range
              3+4
                                         x-Chacle
                                          3       whelu
                  that             ()=
 17. Lot TR>Rach
              or not.
                                     2
                                         cheek igecvtiy
 18. Lat                given b 4)
                                                        en by
14, check               omd Swyechviy 4t:z
                                                   an
   be tnhon deaed by t a) = *-x, MeA
     Yonr      wves,
            1nverSe Trisonomaic. Fnctions
St Prove Ahats
                        toin'()÷ -,xe ((T,)
                                   4
                         -4 2           t                   2    3
                                                                      2
     Bve
                                                 hen
 6. Evaluate the product Ae,                      2     2       - 4
      A=                                    B=          2
                                                                                       Ssfre
             2                                                  -4
                                                                 5
                                             fhndons
          M-3, 21+3y +42-17, J+az3 =7
                                   -1                                     I
                                                                                  and henee
                                                                          2
                                                     matrix    a ovdan 2,
                                              idenyfinA!
                  A=4A- 3T.ece
      thonso tatA=4A-39
                2  31
                            show that A-23A - o 0
                  3   then,2I
                                                             2
                                                     value 9 A-3A +2 I.
l0.
                   2
                                        thes ind the
                                                              Haey calculate
               -6 o 8
               7-8 o                                          Ac+Be.
                                             Veit tat(A+B)C =
       Ac, B      and cA+B) C" Aso                              psd a madri'a
               B=(od c-(3 )                                         d,
|2         3),
       Jet A
       DBueh tharcD-ABZ O.                            2
                       3    4                          4
 |3,      A=                                     2   2 6/
                           7S       4
                                                stewymmtic matara,
 I4.      matri                 b
th
a and b,
     -    6  4
               Jand B=                                         hotty tha r
lb. A (3
   (AB)'= A.
                                           2
                                           +2                                                                                         IS.
                        +3*         2n+           =4,ay-2z X+2=t,-
                        aguahons; ;:                                                gem                the sone               Ao
                                                                                                                              to 't
                                          -3-1                                 S
                        3      |                                                               Determmnei                              l4,
        and
                         -=+                                +                                                         Ssfve             (3.
                                                                 +3-z|,                                       32       slre                   12.
                                   Qn-9+a2
                                    =9,
                                                                                                                              A
    )                                A'
                                     = toatshw
        =C. AxB                                                  tat          ).8-                                 GiA
                                                                                                                     ven:
(22), (amd c=
                                                                                            natin                 te Fd                        4.
                                          which                               tor             A
                                                                                          -tann                   = Aainen
n             &i2
                              AA anhow
                                   that
                                            f
                                           aj                                                                aj Fand                            7.
              2%
               (Cs                 o) 2 A=(adia)iy                                                          (AB)-
                                                                                                            ' !
                     venith -3)                                               B=
                                                      2
                                                          Raak
=(adjA)A= AladjA)
                                               thar
                                                                              tiat 8how
ence A-3A-1T,
       =0,
                                                                       Cosd                    -Sind
          ())=          (Fthat Bhow                                     Snd
                                                 2-2                      I
                                                                                              A
                                                 2
                     etemani                                2                              amd Matice
                                                     Hence, stre Ie followly
                                      =|| and x-ay42so
                    |       -2
                       a4g+2 sb, yt3z
       yter 3 opuahow;
                                 Sad                    adj Aadvemity thar
|7.
                                             B=          3.
                                                      D: -2
                    ls-2
       A= 5A+kT                                               2       4
                                                                              AB.
                        2
                                       aud B
                                                tte     natn              A
                                     nt,2 4
Q3.F d tre vales
                          AA=î2
       sahstes the puahon
                        CsN      S                amol A+ A J~I, tuy
                                       ).   o<neT
                                                2
                     metod a mdegrahon,
      egion, wag the                                               1 +2|    .
               gaphg ye la42|. henee aluete                        -S
 4: Stetoh the
 S. pind lbe
                                     =y amd x                 ivided       to wo
 as. The aea beees
               Applicabn o integra ealelus
                 Boan     bas     R stims,
     &. pnd te a
                                               atitas
     9,    pid Hhe ane          te min Begt tu
                     y2
                                ntega,
                         bn bonded by tu paratota
     andis lalas rechin.
 4ax
            anea ienclde by  tecuwe yaCsn.
13. p d tii
                  ais bereen
  amd
                 bounded by Hee cuce x+yel6
14. prd tte anea                rst gudanb,by
   ana te ine 3        n n te
  wi stegsadsn
                     Vector
              olto gona.
6, pidl tie dinechhon            atio and dinechon cosines ) a
           paHallel to the
      eine baale                       ne whase eguaons
                                                eguaoms ane
      b x =34+4
               and bane    mit wechs amd & s the
                                             la+.
                                                           ngle behwas
     then      har prove thak Cs B
8. pind the anen 9ts panallelogom h                      adjncent
      Bides ane                 tu' echYs ä= i-j+3k and
           IU-j + k
     7. fnd the ve chov whose keno is 3          io amal wthich s
lo.      o vechvs j+Ê amd
                                                         ABc
respectielg,
            Jusrify   o        ansrey,
     30)    î1 AC,3), G (2,-3, 4) and c(-i,2, 7), ti
           poit D }uch that AB and    o ae
                                     pa where Q,A
          anol B ae the points            -2,,3), (o, 2,s), 4,-3,o)
          Omd (7, -S,-)fapecvely.
    B2)     A
            mit ecNY a makes amgles
      X-ais and d-ais Sespecely amol 4an acute argk
        wik Z-anis, en find &omd the(scalkr and ec)
     Comp1nerts
.
Ma
lAee eies.
                           tue   ine       which sterechs te
9Fisd the egunhon
                                                      4
                                       2
                           4
 omd passesr thnogh (y,).                Suehh tat
                     two vecos aand'baie
     |al= 2,                    and
              t r any two vecosaam
 4) Pnyetthar
                                                             9-3
S) T1A deula
 )
    AN type 15 mank             esios n Thnee dimansiogeomay
                                                                font
   (S,4,2) to        he              3
                 tersechhen
                &hotest dstamee            between tie 8raih
   Find u
                     given
                  (,6,3)   amd paale to te line ,
  thoph the point                8hortet distme
7 fino   he   lgtb omd epune
  bereen        he
                          2+1     amd             yis
                -6                                -2
4) Moniim z
                                                        , J=T
                 Cas (2)=:aiveo thar when
                   2
1b.
17. püe he patheulton
      d       Sec?xy = awee, 9ien thar yo)0
     (a+1) d           +22g = Vot4
+aylana 3
                                                  d
84. Stye          the ditteemhalsmion (by) dy=(49
      Where xE (-0,-) U U, o)
ob, pisd the fahenlar sbntn 9
      dt
      da
                eulassnn
40. P d te pih
           (a log) ves har g
      dx
                                                      (,2)
42.
                Bthon          the t e u l epua hon
 43. S e               x
                            +gt2gcot x= o(+o)
4, Slve
4S. Sstre
44, Bstre
                9+*J)dx =o, iven lba                  whey
So Ssre; (2-yy+