Question

If sin C = a/b ,then cos C is equal to?​

Answer 1

Answer:

Step-by-step explanation:

sinC = a/b

P/h = a/b

To get the value of cos we need base (b) ; suppose x

H^2 = p^2 + x^2

b^2 = a^2 + x^2

X^2=b^2-a^2

x = $\sqrlt{b^2-a^2 }$

FINNALY

cos C = $(\sqrt{ b^2-a^2} ) / b$