Prove thatSin2 12 +sin221+sin2 39 +sin248 = 1+sin2 9+sin2 18
Neha Jain , 12 Years ago
Grade
Trigonometry> please solve this question...
1 AnswersNeha Jain
Last Activity: 12 Years ago
Sorry the exact question is:
instead of sin 2 39 it is sin2 39
Sin2 12 +sin221+sin2 39 +sin248 = 1+sin2 9+sin2 18
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