Q.

Let Sp and Sq be the coefficient of xp and xq respectively in (1+x)p+q , then

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a

Sp≠Sq

b

Sp=qpSq

c

Sp=pqSq

d

Sp=Sq

answer is D.

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Detailed Solution

Sp= coeff. of xp=(p+q)!p!q!Sq= coeff. of xq=p+qCq=(p+q)!q!p!Therefore, Sp=Sq
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