Question

If sin 0 = 4upon 5 then find cos 0​

Answer 1

Answer:

we know that,

sin^2 0+cos^2 0= 1

(4/5)2 +cos ^2 0 =1'

cos^2 0 = 1 - 16/25

cos^2 0 = 25-16/25

cos^2 0 = 9/25

cos 0 = 3/5 (taking square root of both the side)

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