JAMB Mathematics questions: Trigonometry

26 questions with answers and explanations. Tap an option to check yourself.

1. Question 21· Trigonometry· JAMB

   Find the value of tan 60°.

   • A√3
   • B1/√3
   • C1
   • D√3/2

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   Explanation and discussion

2. Question 22· Trigonometry· JAMB

   If tan θ = 1/√3 and θ is acute, find θ.

   • A45°
   • B60°
   • C30°
   • D90°

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   Explanation and discussion

3. Question 23· Trigonometry· JAMB

   If sin θ = 8/17 and θ is acute, find cos θ.

   • A9/17
   • B8/15
   • C17/15
   • D15/17

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   Explanation and discussion

4. Question 24· Trigonometry· JAMB

   Find the value of sin 150°.

   • A−√3/2
   • B−½
   • C√3/2
   • D½

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   Explanation and discussion

5. Question 25· Trigonometry· JAMB

   If tan θ = 3/4 and θ is acute, find sin θ.

   • A5/3
   • B4/5
   • C3/4
   • D3/5

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   Explanation and discussion

6. Question 26· Trigonometry· JAMB

   cos (90° − θ) is equal to

   • A−sin θ
   • Bcos θ
   • Ctan θ
   • Dsin θ

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   Explanation and discussion