Exercise3.4 ncert question is 9

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Exercise3.4 ncert question is 9

Posted by Maira Kathuria 6 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Ashutosh Saini 6 years, 5 months ago

Sinx + sin5x + sin3x=0 2sin3x cos2x + sin3x =0 Sin3x(2cos2x+1)=0 If sin3x=0 3x=n(pie);n€z If Cos2x+1=0 Cos2x=-1/2 Cos2x=cos2(pie)/3

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