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Verify sin2 a +cos2a=1

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Verify sin2 a +cos2a=1

Posted by Lala Ram Gurjar 5 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Deepanshu Tyagi 5 years, 11 months ago

Sin2a + Cos2a = 1 Sin2a+Sin(90-2a)=1 Sin(90-2a+2a)=1 Sin90=1 1=1

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CBSE > Class 10 > Mathematics