Trigonometry

JKSSB Class-IV & MTS · Mathematics · 96 practice questions with answers and explanations: 27 Easy, 35 Medium, 34 Hard.

Sample questions

Sample Easy question 1

Find the value of cosec 30°.

  1. 1
  2. 1.5
  3. 2
  4. 2.5
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Answer: C. cosec 30° = 1/sin 30° = 1/0.5 = 2.

Sample Medium question 2

If sin θ = 9/41 (θ acute), find cos θ.

  1. 35/41
  2. 37/41
  3. 39/41
  4. 40/41
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Answer: D. This is a 9-40-41 right triangle, so cos θ = 40/41.

Sample Hard question 3

If cosec θ = 41/9, find cot θ.

  1. 36/9
  2. 38/9
  3. 39/9
  4. 40/9
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Answer: D. cot²θ = 1681/81 - 1 = 1600/81, so cot θ = 40/9.

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