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1+ sinx = sin square x/2 …

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1+ sinx = sin square x/2 + cos square x/2 + 2 sinx/2 cos x /2 How can we obtain this ? Is it a formula

Posted by Himanshi Rajput 3 years, 2 months ago

CBSE > Class 12 > Mathematics

1 answers

Bhumika Agrawal 3 years, 2 months ago

Taking RHS sin^2 (x/2)+cos^2 (x/2)+2sin (x/2)cos (x/2)=1+sin2y {Let x/2=y, sin^2 y + cos^2 y=1, 2 sin y cos y=sin2} put the value of y 1+sin2 (x/2) = 1+sinx

2Thank You

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Posted by Neemisha Gusain 4 months, 2 weeks ago

CBSE > Class 12 > Mathematics