Trigonometry

SSC CGL · Quantitative Aptitude · 96 practice questions with answers and explanations: 27 Easy, 35 Medium, 34 Hard.

Sample questions

Sample Easy question 1

Find the value of cosec 90°.

  1. 0
  2. 0.5
  3. 1
  4. Undefined
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Answer: C. cosec 90° = 1/sin 90° = 1/1 = 1.

Sample Medium question 2

Find the value of (sin 45° + cos 45°)².

  1. 1
  2. 1.5
  3. 2
  4. 2.5
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Answer: C. sin 45° + cos 45° = √2, so squaring gives 2.

Sample Hard question 3

Evaluate: (1 + tan²45°) ÷ (1 + cot²45°)

  1. 0.5
  2. 1
  3. 1.5
  4. 2
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Answer: B. Since tan45°=cot45°=1, both numerator and denominator equal 2, giving a ratio of 1.

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