SinA-sin3A+sin5A-sin7A/cosA-cos3A-cos5A+cos7A=cot2A

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SinA-sin3A+sin5A-sin7A/cosA-cos3A-cos5A+cos7A=cot2A

Posted by Sahil Jain 6 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Aman Kumar 6 years, 3 months ago

Simply use the formula of [sin C - sin D]=> -2sin(c+d/2)sin(c-d/2).....hope it helps

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