Jamb Mathematics Questions
Question 36:
Simplify \(\frac{4a^2 - 49b^2}{2a^2 - 5ab - 7b^2}\)
- A \(\frac{a - b}{2a + b}\)
- B \(\frac{2a + 7b}{a - b}\)
- C \(\frac{2a - 7b}{a + b}\)
- D \(\frac{2a - 7b}{a - b}\)
Question 37:
If cot \(\theta\) = \(\frac{x}{y}\), find cosec\(\theta\)
- A \(\frac{1}{y}\)(x2 + y2)
- B \(\frac{x}{y}\)
- C \(\frac{1}{y}\)\(\sqrt{x^2 + y^2}\)
- D \(\frac{x - y}{y}\)
Question 38:
In triangle PQR, PQ = 1cm, QR = 2cm and PQR = 120o Find the longest side of the triangle
- A \(\sqrt{3}\)cm
- B \(\sqrt{7}\)cm
- C 3cm
- D 7cm
Question 39:
If \(\cos^2 \theta + \frac{1}{8} = \sin^2 \theta\), find \(\tan \theta\).
- A 3
- B \(\frac{3\sqrt{7}}{7}\)
- C 3\(\sqrt{7}\)
- D \(\sqrt{7}\)
Question 40:
If a metal pipe 10cm long has an external diameter of 12cm and a thickness of 1cm find the volume of the metal used in making the pipe
- A 120\(\pi\)cm3
- B 110\(\pi\)cm3
- C 60\(\pi\)cm3
- D 50\(\pi\)cm3