NCERT Class XI Mathematics - Binomial Theorem - Solutions

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Question : 18
Total: 36
(x2yx)12 , x ≠ 0
Solution:  
We have given (x2yx)12 = (x2+(y))12 , x ≠ 0
∴ The general term is Tr+1 =
12
Cr(x2)12r(yx)r

=
12
Crx242r(1)ryrxr
= (1)r
6
Crx242r+ryr
= (1)r
12
Crx24ryr

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