Indices - Mathematics Jamb Past Questions and Answers

Question 16 :

• JAMB 1978

Simplify \(\frac{(a^2 - \frac{1}{a}) (a^{\frac{4}{3}} + a^{\frac{2}{3}})}{a^2 - \frac{1}{a}^2}\)

A. A^{\(\frac{2}{3}\)}
B. A^{-\(\frac{1}{3}\)}
C. \(a^{2}\) + 1
D. A
E. A^{\(\frac{1}{3}\)}

Question 17 :

• JAMB 1979

Simplify \(\frac{5^x \times 25^{x - 1}}{125^{x + 1}}\)

A. 5^{2x + 1}
B. 5^{x + 1}
C. 5^-5
D. 5²
E. 5³

Question 18 :

• JAMB 1979

Find the value of (4^{\(\frac{1}{2}\)})⁶

A. 1
B. 2
C. 4
D. 6
E. 8

Question 19 :

• JAMB 1979

If \(\sqrt{3^{\frac{1}{x}}}\) = \(\sqrt{9}\) then the value of x is:

A. \(\frac{3}{4}\)
B. \(\frac{4}{3}\)
C. \(\frac{1}{3}\)
D. \(\frac{2}{3}\)
E. \(\frac{1}{2}\)

Question 20 :

• JAMB 1980

Evaluate \((2^{0} + 4^{-\frac{1}{2}})^{2}\)

A. \(\frac{1}{4}\)
B. \(\frac{5}{4}\)
C. \(\frac{9}{4}\)
D. 4
E. 9