Math, asked by megh3, 1 year ago

2SinA CosA-Cos A-2 Sin A + 1 = 0

Answers

Answered by kkn2

2sinAcosA-cosA-2sinA+1=0
cosA(2sinA-1)-1(2sinA-1)=0
(cosA-1)(2sinA-1)=0
cosA-1=0 or 2sinA-1=0
cosA=1 or 2sinA=1
A=0 or sinA=1/2
A=0° or A=30°

siddhartharao77: Good Explanation

kkn2: mark bhi kardo phir

siddhartharao77: I can't mark ur answer as brainliest bcoz i didn't ask the question

kkn2: ohh

Answered by Anonymous

Answer:

2sinAcosA-cosA-2sinA+1=0

cosA(2sinA-1)-1(2sinA-1)=0

(cosA-1)(2sinA-1)=0

cosA-1=0 or 2sinA-1=0

cosA=1 or 2sinA=1

A=0 or sinA=1/2

A=0° or A=30°

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