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JEE Main Math Class 11 Binomial Theorem Part 1 Questions

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Question : 67

Total: 100

If the coefficents of x3 and x4 in the expansion of (1+ax+bx2)(1−2x)18 in powers of x are both zero, then (a,b) is equal to:

(14,‌
272
3
)
(16,‌
272
3
)
(16,‌
251
3
)
(14,‌
251
3
)

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