Question

If A,B are acute angles such that sinA=cos B, then S+B= options : A) pi by 2. B) pi by 4. C) pi .D)pi by 3 ) please answer​

Answer 1

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Answer 2

Step-by-step explanation:

Given that:-

A,B are acute angles such that sinA=cos B,

=>SinA=Sin(90-B)

we know that CosA=Sin(90-A)

=>A=90-B

=>A+B=90°

=>A+B=180°/2

=>A+B=π/2