Jamb Mathematics Past Questions and Answers

Question 1841:

• JAMB 2006

If \(T = 2\pi \sqrt{\frac{l}{g}}\), make g the subject of the formula

A. (4π l²) / T
B. (4π²l) / T²
C. (4π²l²) / T²
D. (2π√l) / T

Question 1842:

• JAMB 2006

If y = x\(^2\) - x - 12, find the range of values of x for which y \( \geq \) 0

A. X < -3 0r x > 4
B. X \( \leq \) -3 or x \( \geq \) 4
C. -3 < x \( \geq \) 4
D. -3 \( \leq \) x \( \leq \) 4

Question 1843:

• JAMB 2006

How many terms of the series 3, -6, +12, - 24, + ..... are needed to make a total of 1-2⁸?

A. 12
B. 10
C. 9
D. 8

Question 1844:

• JAMB 2006

Find p, q for which \(\begin{pmatrix} 2p & 8 \\ 3 & -5q \end{pmatrix}\)\(\begin{pmatrix} 1 \\ 2\end{pmatrix}\)\(\begin{pmatrix}24 \\ -17\end{pmatrix}\)

A. -4
B. 45
C. 4,2
D. 2

Question 1845:

• JAMB 2006

If x = \(\begin{pmatrix} 1 & 0 & 1 \\ 2 & -1 & 0 \\ -1 & 0 & 1\end{pmatrix}\) and y = \(\begin{pmatrix} -1 & 1 & 2 \\ 0 & -1 & -1 \\ 2 & 0 & 1\end{pmatrix}\)
find 2x - y

A. \(\begin{pmatrix} 3 & -1 & 0 \\ 4 & -3 & -1 \\ -4 & 1 & 1\end{pmatrix}\)
B. \(\begin{pmatrix} 3 & -1 & 0 \\ 4 & -1 & 1 \\ -4 & 1 & 1\end{pmatrix}\)
C. \(\begin{pmatrix} 3 & -1 & 0 \\ 4 & -3 & 1 \\ -4 & 1 & 1\end{pmatrix}\)
D. \(\begin{pmatrix} 3 & -1 & 0 \\ 4 & 1 & 1 \\ -4 & -1 & 1\end{pmatrix}\)