NCERT Class XI Mathematics - Binomial Theorem - Solutions
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Question : 18
Total: 36
Solution:
We have given ( x 2 − y x ) 12 = ( x 2 + ( − y ) ) 12 , x ≠ 0
∴ The general term isT r + 1 =
C r ( x 2 ) 12 − r ( − y x ) r
=
C r x 24 − 2 r ( − 1 ) r y r x r = ( − 1 ) r
C r x 24 − 2 r + r y r = ( − 1 ) r
C r x 24 − r y r
∴ The general term is
=
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