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Question

Number of Partial Fractions of x3+x2+1x4+x2+1 is

A
2
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B
3
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C
4
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D
7
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Solution

The correct option is A 2
x3+x2+1x4+x2+1=x3+x2+1(x2+x1)(x2x+1)
=Ax+Bx2+x+1+Cx+Dx2x+1
x2+x+1;x2x+1 non reducable
So, no. of partial fractions 2

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