Question

if sinA = CosB and sinA = tanA then the value B is

Answer 1

1 is the answer

If sin A = cos B

Then sin A = cos(90-B)

SinA = sin B (because cos (90- B)= sinB)

Therefore sinA = sinB

Then

SinB = sinA / cosA ( because sinA =sinB)

SinB= sinA/ cos(90-A)

SinB = sinA/ SinA (because cos(90-A)= sinA

SinB =1 ( because sinA and sinA get cancel) I