Math, asked by surajamenon, 8 hours ago

If sin 2A=2sinA then the value of A if sin2A-2sinA=0

Answers

Answered by devisushila2282

0

Step-by-step explanation:

We know that ,

sin2A =2sinAcosA...(1)

Given,

sin2A = 2sinA

From eq. (1)

2sinAcosA - 2sinA = 0

2sinA(cosA - 1) = 0

Implies

2sinA = 0 >>>>A = 0°
cosA-1 = 0 >>>cosA = 1 >>> A = 0°

A = 0°

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