Sina + sin 2a + sin 3a
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sin6a is correct answer
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If sinA+sin2A+sin3A=1 prove that - cos6A-4cos4A+8cos2A=4 - 8139161.
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Answer:cos^6A - 4 cos^4A + 8cos^2A = 4 Step-by-step explanation:Please find the answer sinA + sin²A + sin³A = 1 sinA + sin³A = 1 - sin²A = cos²A sinA(1+sin ... More
answer please thanks
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