Indices, Logarithms and Surds - Jamb Mathematics Past Questions and Answers

Question 166:

• JAMB 2010

Rationalize \(\frac{2\sqrt{3} + \sqrt{5}}{\sqrt{5} - \sqrt{3}}\)

A. (3 √ 15 +11) / 2
B. 3 √ 15 -11
C. (3 √ 15 -11) / 2
D. 3 √ 15 +11

Question 167:

• JAMB 2010

Express the product of 0.21 and 0.34 in standard form

A. 7.14 x 10^-3
B. 7.14 x 10^-2
C. 7.14 x 10^-1
D. 7.14 x 10^-4

Question 168:

• JAMB 2011

If log₃18 + log₃3 - log₃x = 3, Find x.

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

Question 169:

• JAMB 2011

Rationalize \(\frac{2 - \sqrt5}{3 - \sqrt5}\)

A. \(\frac{1 - \sqrt5}{2}\)
B. \(\frac{1 - \sqrt5}{4}\)
C. \(\frac{ \sqrt5 - 1}{2}\)
D. \(\frac{1 + \sqrt5}{4}\)

Question 170:

• JAMB 2011

Simplify (\(\sqrt2 + \frac{1}{\sqrt3})(\sqrt2 - \frac{1}{\sqrt3}\))

A. \(\frac{7}{3}\)
B. \(\frac{5}{3}\)
C. \(\frac{5}{2}\)
D. \(\frac{3}{2}\)