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Mathematics: Core Concepts MCQs

Waraq ECAT Review: Mathematics · ECAT / Engineering Entrance · 20 practice questions

1. The modulus of the complex number 3 + 4i is:

  1. A25
  2. B5
  3. C7
  4. D1
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B. 5 Square root of 9 plus 16.

2. The integral of 2x dx is:

  1. Ax + C
  2. B2 + C
  3. C2x^2 + C
  4. Dx^2 + C
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D. x^2 + C The antiderivative of 2x is x squared.

3. The derivative of sin x is:

  1. A-sin x
  2. Btan x
  3. Ccos x
  4. D-cos x
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C. cos x A basic differentiation formula.

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