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Q.

A polynomial  p(x)=x4+ax3+bx2+cx+d has roots 2, e and π and no other roots. Let I=2ep(x)dx and J=eπp(x)dx, then which of following option(s) is/are INCORRECT?

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a

I and J must have opposite signs

b

 I and J can be both positive but not both negative

c

I and J can be both negative but not both positive 

d

 Not enough information is provided to compare the signs of  I and J

answer is A, B, D.

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Detailed Solution

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Roots of fx=0 can be π,π,e,2 orπ,e,e,2 or π,e,2,2

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