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The sin2xcos6xdx is a

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a
is a polynomial of degree 5 in sin⁡x
b
is a polynomial of degree 4 in tan⁡x
c
is a polynomial of degree 5 in tan⁡x
d
is a polynomial of degree 5 in cos⁡x

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detailed solution

Correct option is C

Putting tan⁡x=t the given integral can be written as∫t21+t2dt=t33+t55+C=tan5⁡x5+tan3⁡x3+Cwhich is a polynomial of degree 5 in tan x


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