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2020 Mathematics
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Questions
120
Duration
180 mins
Package
Combined Defence Services Examination (I) - Previous Year Papers
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120questions
Medium
40
33.3%
Hard
40
33.3%
Easy
40
33.3%
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120questions
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120
100%
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Sample questions from this paper
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2020 · Unclassified
2020 Mathematics
If matrix A = \[\begin{bmatrix} 1 - i & i \\ -i & 1 - i \end{bmatrix}\] where i = √{-1}, then which one of the following is correct ?
2020 · Unclassified
2020 Mathematics
The term independent of x in the binomial expansion of \[\left( 2/x² - √{x} \right)^{10}\] is equal to
2020 · Unclassified
2020 Mathematics
If \((1 + 2x - x²)⁶ = a₀ + a₁ x + a₂ x² + ... + a_{12} x^{12}\), then what is \(a₀ - a₁ + a₂ - a₃ + a₄ - ... + a_{12}\) equal to ?
2020 · Unclassified
2020 Mathematics
If C(20, n + 2) = C(20, n - 2), then what is n equal to ?
2020 · Unclassified
2020 Mathematics
For how many values of k, is the matrix \[\begin{bmatrix} 0 & k & 4 \\ -k & 0 & -5 \\ -k & k & -1 \end{bmatrix}\] singular ?
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2020 · Unclassified
2020 Mathematics
The number \((1101101 + 1011011)₂\) can be written in decimal system as