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prove that 2sin 2 (x)+4cos(x+a)sina.sinx+cos2(x+a) is independant of x.

prove that 2sin2(x)+4cos(x+a)sina.sinx+cos2(x+a) is independant of x.

Grade:12

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
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