Question

If sin Θ = a/b, then cos Θ = ?

Answer 1

Step-by-step explanation:

opposite side =a

hypotunus =b

adjacent side =b^2-a^2

cos Θ =b^2-a^2/b

plz mark me as brainliest

Answer 2

Here s ur ans mate

sin2 theta + cos2 theta = 1

cos theta =√1-sin2 theta

                =√1-a2/b2

                =√b2 - a2/b2                             (ANS)