Math, asked by kiran51111111, 1 year ago

2sin^2A+cosA=4 pt cosA=1/2

rithvikpranao1p30mn5: 2 sin to power?

Answers

Answered by rakeshmohata

Question is wrong... It would be.

2 Sin²A +cos A =2
or, cosA = 2-2sin²A
or, cosA =2(1-sin²A)
or, cosA = 2cos²A
So...cosA =½ × cosA/cosA =½ (proved)
Hope I helped u.

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