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Friday, 14 August 2026
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Mathematics Past Questions and Answers

Topic: Trigonometry

Jamb Mathematics Questions - Trigonometry

Question 11:
A man stands on a tree 150cm high and sees a boat at an angle of depression of 74°. Find the distance of the boat from the base of the tree.
  • A 52cm
  • B 43cm
  • C 40cm
  • D 15cm
View Answer & Explanation
Question 12:
Tanθ is positive and Sinθ is negative. In which quadrant does θ lies
  • A Second only
  • B Third only
  • C Fourth only
  • D First and third only
View Answer & Explanation
Question 13:
Given that Sin (5\(_x\) − 28)\(^o\) = Cos(3\(_x\) − 50)\(^o\), O\(_x\) < 90\(^o\)
Find the value of x
  • A 14\(^o\)
  • B 21\(^o\)
  • C 32\(^o\)
  • D 39\(^o\)
View Answer & Explanation
Question 14:
Evaluate \(\int\limits_0^\frac{\pi}{2}\) sin xdx
  • A 2
  • B -1
  • C 1
  • D -2
View Answer & Explanation
Question 15:
If y = cos 3x, find \(\frac{\delta y}{\delta x}\)
  • A \(\frac{1}{3} \sin 3x\)
  • B \(-\frac{1}{3} \sin 3x\)
  • C 3 sin 3x
  • D -3 sin 3x
View Answer & Explanation