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MATHS M.C.Q (1 Marks)

PART - 1 CH - 7 Binomial Theorem · Rajasthan Board (RBSE) STD 11 Science (Rajasthan - English Medium). 3 questions.

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M.C.Q (1 Marks)

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3 questions · timed · auto-graded

MCQ 11 Mark
If the sum of even and odd terms of the expansion of $(x+a)^n$ are A and B respectively, $(x+a)^{2 n}-(x$ $-a)^{2 n}$ is equal to :
  • A
    $4 (A + B)$
  • B
    $AB$
  • C
    $4 (A – B)$
  • ✓
    $4AB$
Answer
Correct option: D.
$4AB$
(D)
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MCQ 21 Mark
If $C _0, C _1, C _2 \ldots . . C _n$ are the coefficients of different terms of the expansion of $(1+x)^n$, then $C _0+ C _2+$ $C _4+\ldots .$. is equal to :
  • A
    $2^n$
  • B
    $2^n-1$
  • ✓
    $2^{n-1}$
  • D
    $2^{n+1}$
Answer
Correct option: C.
$2^{n-1}$
(C )
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MCQ 31 Mark
The number of terms in the expansion of $\left(\frac{a}{x}+b x\right)^{12}$ is :
  • A
    11
  • ✓
    13
  • C
    10
  • D
    14
Answer
Correct option: B.
13
(B)
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M.C.Q (1 Marks) - MATHS STD 11 Science Questions - Vidyadip