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BINOMIAL THEOREM — MATHS STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceMATHSBINOMIAL THEOREM1 Mark
MCQ
The number of terms in the expression of $(x+y)^{n-1}$ is 2018 then n.
  • ✓
    2018
  • B
    2019
  • C
    2017
  • D
    2016
✓

Answer

Correct option: A.
2018
  1. 2018
Solution:
Here, the no. of terms in binomial expansion of $(x+y)^{n-1}$ is $(n-1)+1$ i.e; one more the exponent,
$\Rightarrow(n-1)+1=2018$
$\Rightarrow n=2018$

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