if sin x+sin2 x=1 then find the value of cos8 x+2cos6 x+cos4 x.
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cos8x + 2cos6x + cos4x = 0
0 is the answer
0 is the answer
RahulKumarMehta:
no cos pe 8 aisqayer hai
8 , 6, 4 aisqayer hai
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