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If `P_n=cos^ntheta+sin^ntheta,` show that : `2P_6-3P_4+1=0`.

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If `P_n=cos^ntheta+sin^ntheta,` show that : `2P_6-3P_4+1=0`.
A. -1
B. 0
C. 1
D. none of these
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1 Answer

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Correct Answer - C
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