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Vimal Shukshma Raj

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Prove that cosXcos2Xcos4Xcos8X=sin16X/16sinX
1. 2 answers
2. 1,382 views
Prove that tan6°tan42°tan66°tan78°=1
1. 1 answer
2. 835 views
√x+y=11x+√y=7
1. 2 answers
2. 348 views