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Sin 3 a - 1 =0 find the value of a please I'm not getting this... |
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Answer» Answer: 30 Step-by-step EXPLANATION: sin3A=1 sin3A=sin90 3A=90 A=30∘ Now, cos2A1−tan2A = cos230˚1−tan230˚ = 31−34 = 34−1 = 1 if you understood mark me brainliest...:) |
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