Scribd
Upload
7K views4 pages

Formula

This document contains formulas and identities relating trigonometric functions for angles, their sums and differences, and double angles. It includes formulas for sine, cosine, tangent, cotangent, secant and cosecant of sums and differences of angles, as well as double angle formulas expressing trig functions of double angles in terms of single angles. It also contains the trigonometric definitions of inverse trig functions and logarithmic and exponential definitions of trig functions.

Uploaded by

SANIUL ISLAM
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
7K views4 pages

Formula

This document contains formulas and identities relating trigonometric functions for angles, their sums and differences, and double angles. It includes formulas for sine, cosine, tangent, cotangent, secant and cosecant of sums and differences of angles, as well as double angle formulas expressing trig functions of double angles in terms of single angles. It also contains the trigonometric definitions of inverse trig functions and logarithmic and exponential definitions of trig functions.

Uploaded by

SANIUL ISLAM
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 4

Sin (A B) = Sin A Cos B Cos A Sin B

tan2A =
Sin (A B) = Sin A Cos B Cos A Sin B

Cos (A B) = Cos A Cos B Sin A Sin B


Sin (- ) = Sin

Cos (A B) = Cos A Cos B Sin A Sin B Cosec (- ) = Cosec

Cos (- ) = Cos
2 Sin A Cos B = Sin (A B) Sin (A B)

2 Cos A Sin B = Sin (A B) Sin (A B)


sec (- ) = sec

2 Cos A Cos B = Cos (A B) + Cos (A B) tan (- ) = tan


2 Sin A Cos B = Cos (A B) Cos (A B) cot (- ) = cot

Sin C Sin D = 2 Sin Cos


=1
Sin C Sin D = 2 Cos Sin
=1
Cos C Cos D = 2 Cos Cos
=1
Cos C Cos D = 2 Sin Sin

A=1 Cos 2A
tan (A B) =
A=1 Cos 2A
tan (A B) =
Sin 2A = 2 Sin A Cos A
cot (A B) = Cos 2A = A A

cot (A B) = Cos 2A = 1 A

Cos 2A = A 1
Sin2A =

Cos 2A =

SANIUL ISLAM EEE East West University


A=

(C) = 0 ( )=

( )=1 ( )=

( )= ( )=

( )= ( )=

( )= ( )=

(ln ) = ( )=

( )= ( )= ( ) ( )

(Sin ) = Cos
( )=
(Cos ) = Sin
{f(x)} =
(tan ) =

(cot ) =

(Sec ) = sec tan

(Cosec ) = Cosec cot

( )=

( )=

SANIUL ISLAM EEE East West University


=

= ln

= Cos

= Sin

= tan

= cot

= Sec

= Cosec

= Sec

= Sin

= (Sec + tan )

= (Cosec + cot )
SANIUL ISLAM EEE East West University
=

= log

= log

SANIUL ISLAM EEE East West University

You might also like