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Binomial Theorem question

2021 · 27 Jul · Shift 1 · Q29

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PYQ Library
JEE Main
Mathematics
Binomial Theorem
2021 · 27 Jul · Shift 1 · Q29

Binomial Theorem question

2021 · 27 Jul · Shift 1 · Q29

JEE MainMathematicsBinomial TheoremMCQ+4 / −1

If the coefficients of x7 in

{\left( {{x^2} + {1 \over {bx}}} \right)^{11}}

and x

-

7 in

{\left( {{x} - {1 \over {bx^2}}} \right)^{11}}

, b

e

0, are equal, then the value of b is equal to :

A
2
B
$-$ 1
C
1
D
$-$ 2

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