Question

if sina=cosb,then a+b​

Answer 1

Answer:

sina = sin (90° - b)

a = 90 - b

a+b = 90

Answer 2

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→ if sina=cosb,then a+b

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⇒Given:

• Sin A = Cos B

⇒To Find:

• A + B

⇒$\large{{\cancel{Sin}}\:A={\cancel{Sin}}(90-B)}$

⇒$A=90-B$

⇒$\huge{A+B=90}$

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Formulas Used :-

• Sin A = Cos(90-A)

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