Question

Answer the given question ​

Answer 1

Step-by-step explanation:

cosA= cos B

A and B are acute angal so A+B=90

so

cosA=cosB

cosA=cos(90-A)

cosA= sinA

so

A= 45°

follow+10 ❤

Answer 2

cos A =cos B

A and B is the acute angle so A +B =90

so cos A =cos B

cos A =cos (90-A )

cos A =sin A

so A =45 °

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