Math, asked by lucky254, 1 year ago

2sinAcosA-cosA-2sinA+1=0

Answers

Answered by Anonymous

20

2sinAcosA - cosA - 2sinA +1 = 0

2sinA(cosA - 1) = cosA - 1

2sinA = cosA - 1/cos - 1

2sinA = 1

sinA = 1/2

A = 30°

Hope this helps you...:)

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