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The Signs of Sine, Cosine and Tangent of Any Angle: Tanda-Tanda Bagi Sinus, Kosinus Dan Tangen Bagi Sebarang Sudut

The document discusses the signs of sine, cosine, and tangent for any angle. It explains that the signs depend on the quadrant that the angle is located in. The signs are given for when the angle is in the first and second quadrants, as well as the third and fourth quadrants.

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175 views1 page

The Signs of Sine, Cosine and Tangent of Any Angle: Tanda-Tanda Bagi Sinus, Kosinus Dan Tangen Bagi Sebarang Sudut

The document discusses the signs of sine, cosine, and tangent for any angle. It explains that the signs depend on the quadrant that the angle is located in. The signs are given for when the angle is in the first and second quadrants, as well as the third and fourth quadrants.

Uploaded by

evacuate clash
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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The Signs of Sine, Cosine and Tangent of Any Angle

Tanda-tanda bagi Sinus, Kosinus dan Tangen bagi Sebarang Sudut

Let reference angle = α, the signs of sine, cosine and tangent of any angle, θ, are shown as below:
Katakan sudut rujukan = α, tanda-tanda bagi sinus, kosinus dan tangen bagi sebarang sudut, θ, ditunjukkan seperti di bawah:

y y

θ
α θ α
x x
0 0

sin θ = sin α sin θ = sin α


cos / kos θ = cos / kos α cos / kos θ = −cos / kos α
tan θ = tan α tan θ = −tan α

y y

θ θ
x x
α 0 0 α

sin θ = −sin α sin θ = −sin α


cos / kos θ = −cos α cos / kos θ = cos / kos α
tan θ = tan α tan θ = −tan α

Locate the angle in the correct quadrant to get correct sign.


Menempatkan sudut dalam sukuan yang betul untuk mendapatkan tanda yang betul.

Sine All
Sinus Semua
(+) (+)
x
0
Tangent Cosine
Tangen Kosinus
(+) (+)

© Penerbitan Pelangi Sdn. Bhd. 2 Top Additional Mathematics Form 5

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