Search SchoolNGR

Wednesday, 01 April 2026
Register . Login

Mathematics Past Questions and Answers

Mathematics Questions

Question 1621:
Find the derivative of \(y = \sin^{2} (5x)\) with respect to x.
  • A 10 sin 5x cos 5x
  • B 5 sin5x cos 5x
  • C 2 sin 5x cos 5x
  • D 15 sin 5x cos 5x
View Answer & Explanation
Question 1622:
The slope of the tangent to the curve y = 3x\(^2\) - 2x + 5 at the point (1, 6) is
  • A 4
  • B 1
  • C 6
  • D 5
View Answer & Explanation
Question 1623:
Evaluate \(\int \sin 3x \mathrm d x\)
  • A (2/3) cos 3x + c
  • B (1/3) cos 3x + c
  • C (-1/3) cos 3x + c
  • D (-2/3) cos 3x + c
View Answer & Explanation
Question 1624:
A circle with radius 5cm has its radius increasing at the rate of 0.2m/s. What will be the corresponding increase in the area?
  • A
  • B
  • C π
  • D
View Answer & Explanation
Question 1625:
If \(y = x^2 - \frac{1}{x}\). find dy/dx
  • A 2x - (1/x2)
  • B 2x + x2
  • C 2x - x2
  • D 2x + (1/x2)
View Answer & Explanation