Surds - Jamb Mathematics Past Questions and Answers

Question 56:

• JAMB 2012

If P is a set of all prime factors of 30 and Q is a set of all factors of 18 less than 10, find P \(\cap\) Q

A. {3}
B. {2,3}
C. {2,3,5}
D. {1,2}

Question 57:

• JAMB 2013

Simplify \(\frac{\sqrt{5}(\sqrt{147} - \sqrt{12}}{\sqrt{15}}\)

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

Question 58:

• JAMB 2014

Simplify \(\frac{2\sqrt{2} - \sqrt{3}}{\sqrt{2} + \sqrt{3}}\)

A. 3\(\sqrt{6} - 7\)
B. 3\(\sqrt{6} + 7\)
C. 3\(\sqrt{6} - 1\)
D. 3\(\sqrt{6} + 1\)

Question 59:

• JAMB 2015

Simplify √30 x √40

A. 10 √3
B. 5 √3
C. 20 √3
D. 15 √3

Question 60:

• JAMB 2015

Rationalize 5 ÷ (2 − √3)

A. 3(2 + √5)
B. 2(3 + √5)
C. 5(2 + √3)
D. 3 √2 + 1