Question

if sin 2A= 2 sin A , then find A

Answer 1

$\bf\huge\underline\red{Answer:-}$

Given:

• sin2A=2sinA

⟹2sinAcosA=2sinA

We know that,

sin2A = 2sinAcosA

⟹2sinAcosA−2sinA=0

⟹2sinA(cosA−1)=0

⟹2sinA=0OrcosA−1=0

⟹sinA=0OrcosA=1

⟹sinA=sin0° (Or) cosA=cos0°

⟹A=0°

Therefore,

Value of A = 0°

Answer 2

Refer the attachment!!!!