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prove that sin 2 12+sin 2 21+sin 2 39+sin 2 48=1+sin 2 9+sin 2 18

prove that sin212+sin221+sin239+sin248=1+sin29+sin218

Grade:12th pass

1 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
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