Search SchoolNGR

Tuesday, 21 April 2026
Register . Login

Mathematics Past Questions and Answers

Jamb 1998 Mathematics Questions

Question 26:
From the top of a vertical mast 150m high., two huts on the same ground level are observed. One due east and the other due west of the mast. Their angles of depression are 60o and 45o respectively. Find the distance between the huts
  • A 150(1 + \(\sqrt{3}\))m
  • B 50( \(\sqrt{3}\) - \(\sqrt{3}\))m
  • C 150 \(\sqrt{3}\)m
  • D \(\frac{50}{\sqrt{3}}\)m
View Answer & Explanation
Question 27:
If y = 243(4x + 5)-2, find \(\frac{dy}{dx}\) when x = 1
  • A \(\frac{-8}{3}\)
  • B \(\frac{3}{8}\)
  • C \(\frac{9}{8}\)
  • D -\(\frac{8}{9}\)
View Answer & Explanation
Question 28:
Differentiate \(\frac{x}{cosx}\) with respect to x
  • A 1 + x sec x tan x
  • B 1 + sec<sup style='font-size: smaller;'>2</sup> x
  • C Cos x + x tan x
  • D X sec x tan x + secx
View Answer & Explanation
Question 29:
Evaluate ∫\(^{\pi}_{2}\)(sec2 x - tan2x)dx
  • A \(\frac{\pi}{2}\)
  • B \(\pi\) - 2
  • C \(\frac{\pi}{3}\)
  • D \(\pi\) + 2
View Answer & Explanation
Question 30:
find the equation of the curve which passes through by 6x - 5
  • A 6x<sup style='font-size: smaller;'>2</sup> - 5x + 5
  • B 6x<sup style='font-size: smaller;'>2</sup> + 5x + 5
  • C 3x<sup style='font-size: smaller;'>2</sup> - 5x - 5
  • D 3x<sup style='font-size: smaller;'>2</sup> - 5x + 3
View Answer & Explanation