Question

If A+B=90°, sin A = a, sin B=b prove that
tan A = a/b​

Answer 1

Answer:

Given A+ B = 90°

Sin(A) = a - - - = 1

Sin(B) = b

Sin( 90-A) = b

Cos (A) = b - - - = 2

1/2 gives

tan(A) = a/b

Answer 2

we know that sin /cos = tan