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Question

If x2e2xdx=e2x(ax2+bx+c)+d, then

A
a=1,b=1,c=12
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B
a=1,b=1,c=12
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C
a=1,b=1,c=12
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D
None of these
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Solution

The correct option is D None of these
x2e2xdx=x2e2x2+2x.e2x2
=x22e2xxe2x
=x22e2x[xe2x2e2x2]
=x22e2x[xe2x2+12e2x2]
=x22e2x+xe2x2+14e2x
=e2x[x22+x2+14]+d
=e2x[ax2+bx+c]+d
a=1/2b=1/2c=1/4

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