ALGEBRA - Jamb Mathematics Past Questions and Answers

Question 346:

• JAMB 1995

\(\begin{vmatrix} -2 & 1 & 1 \\ 2 & 1 & k \\1 & 3 & -1 \end{vmatrix}\) = 23

A. 1
B. 2
C. 3
D. 4

Question 347:

• JAMB 1995

If x = \(\begin{pmatrix} 1 & 2 \\ 0 & 3 \end{pmatrix}\) and y = \(\begin{pmatrix} 2 & 1 \\ 4 & 3 \end{pmatrix}\). Find xy.

A. \(\begin{pmatrix} 10 & 7 \\ 12 & 9 \end{pmatrix}\)
B. \(\begin{pmatrix} 2 & 7 \\ 4 & 17 \end{pmatrix}\)
C. \(\begin{pmatrix} 10 & 4 \\ 4 & 6 \end{pmatrix}\)
D. \(\begin{pmatrix} 4 & 3 \\ 10 & 9 \end{pmatrix}\)

Question 348:

• JAMB 1995

Use the graph of the curve y = f(x)to solve the inequality f(x) \(\leq\) 0

A. -1 \(\geq\) x \(\geq\) 1, x \(\geq\) 2
B. X \(\leq\) -1, 1 \(\geq\) x \(\geq\) 2
C. X \(\geq\) -1, 1 \(\geq\) x \(\geq\) 2
D. X \(\geq\) 2, -1 \(\geq\) x \(\geq\) 1

Question 349:

• JAMB 1997

If 8^{\(\frac{x}{2}\)} = (2^{\(\frac{3}{8}\)})(4\(\frac{3}{4}\)), find x

A. \(\frac{3}{8}\)
B. \(\frac{3}{4}\)
C. \(\frac{4}{5}\)
D. \(\frac{5}{4}\)

Question 350:

• JAMB 1997

If the function f(fx) = x³ + 2x² + qx - 6 is divisible by x + 1, find q

A. -5
B. -2
C. 2
D. 5