2sin^2A+cosA=4 pt cosA=1/2
rithvikpranao1p30mn5:
2 sin to power?
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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.
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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