Math, asked by minakshikulkarni54, 3 months ago

if sin q is 4 upon 5 find cos q

Answers

Answered by varshasv10
1

Answer:

3/5

Step-by-step explanation:

sin q=4/5 ----(given)

by using identity,

sin^2q+cos^2q=1

(4/5)^2+cos^2q= 1

cos^2q=1-(4/5)^2

cos^2q= 1-16/25

cos^2q=25-16/25

cos^2q= 9/25

cos q= 3/5 ------(taking square root on both sides)

cos q= 3/5

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