Trigonometry

JKSSB Sub-Inspector (Executive) · 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 45°.

  1. 1.21
  2. 1.31
  3. 1.41
  4. 1.51
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Answer: C. cosec 45° = 1/sin 45° = √2 ≈ 1.41.

Sample Medium question 2

Solve for θ (0°<θ<90°): 2 sin θ = 1.

  1. 30°
  2. 45°
  3. 60°
  4. 90°
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Answer: A. sin θ = 0.5, so θ = 30°.

Sample Hard question 3

Simplify: cos²θ × sec θ × cosecθ

  1. sinθ
  2. cosθ
  3. tanθ
  4. cotθ
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Answer: D. cos²θ × (1/cosθ) × (1/sinθ) = cosθ/sinθ = cotθ.

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