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Saturday, 13 June 2026
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Mathematics Past Questions and Answers

Topic: Surds

Jamb Mathematics Questions - Surds

Question 1:
Rationalize \(\frac{\sqrt{2} + \sqrt{3}}{\sqrt{2} - \sqrt{3}}\)
  • A \(-5 - 2\sqrt{6}\)
  • B \(-5 + 3\sqrt{2}\)
  • C \(5 - 2\sqrt{3}\)
  • D \(5 + 2\sqrt{6}\)
View Answer & Explanation
Question 2:
Evaluate (\(\sin\)45o + \(\sin\)30o ) in surd form
  • A \(\frac{\sqrt{3}}{2\sqrt{2}}\)
  • B \(\frac{1}{2}\)
  • C \(\frac{1}{2}\)√2
  • D 1 + \(\frac{\sqrt{2}}{2}\)
View Answer & Explanation
Question 3:
Rationalize \(\frac{\sqrt{6} - \sqrt{4}}{\sqrt{6} + \sqrt{4}}\)
  • A 5 + 2 \(\sqrt{6}\)
  • B 5 - 4 \(\sqrt{6}\)
  • C 5 + 4 \(\sqrt{6}\)
  • D 5 - 2 \(\sqrt{6}\)
View Answer & Explanation
Question 4:
Rationalize 5 ÷ (2 − √3)
  • A 3(2 + √5)
  • B 2(3 + √5)
  • C 5(2 + √3)
  • D 3 √2 + 1
View Answer & Explanation
Question 5:
Rationalize the expression \(\frac{1}{\sqrt{2} + \sqrt{5}}\)
  • A \(\frac{1}{3}\)(\(\sqrt{5} - \sqrt{2}\)
  • B \(\frac{\sqrt{2}}{3}\) + \(\frac{\sqrt{5}}{5}\)
  • C \(\sqrt{2} - \sqrt{5}\)
  • D 5(\(\sqrt{2} - \sqrt{5}\)
  • E \(\frac{1}{3}\)(\(\sqrt{2} - \sqrt{5}\)
View Answer & Explanation