binksnrain595 binksnrain595
  • 09-02-2024
  • Mathematics
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If the coefficients of the three successive terms in the binomial expansion of (1+x)ⁿ are in the ratio 1:7:42, then the first of these terms in the expansion is
A. 6th
B. 7th
C. 8th
D. 9th

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