prove that sin212+sin221+sin239+sin248=1+sin29+sin218
prove that sin212+sin221+sin239+sin248=1+sin29+sin218
indu , 8 Years ago
Grade 12th pass
Trigonometry> prove that sin 2 12+sin 2 21+sin 2 39+sin...
1 Answers
Saurabh Koranglekar
Last Activity: 5 Years ago
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