Question

if tan A= 1, then find the value of 2sinAcosA​

Answer 1

Answer:

Hey there,

tan A = 1

A = 45°

2sin A cos A = sin 2A

2sin A cos A = sin 2×45°

2sin A cos A = sin 90°

2sin A cos A = 1

2sin A cos A = tan A

Hope it helps you

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Answer 2

tanA= 1

here, A=45°

2sinA×cosA= sin²A

2sinA×cosA= sin²×45°

2sinA×cosA= sin 90°

2sinA×cosA=1

2sinA×cosA=tanA

Hence,proved

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