Neco Mathematics 2008 Past Questions and Answers

Question 6:

• NECO 2008

Rationalize the expression \(\frac{(7 - \sqrt{3})}{(13 - \sqrt{3})}\)

A. (44 + 3\(\sqrt{3}\)) ÷ 83
B. (44 + 2\(\sqrt{3}\)) ÷ 83
C. (44 - 3\(\sqrt{3}\)) ÷ 83
D. (44 - 4\(\sqrt{3}\)) ÷ 83
E. (44 - 2\(\sqrt{3}\)) ÷ 83

Question 7:

• NECO 2008

In proving the congruence of two triangles, which of the following is not important?

A. Two sides and the included angles
B. Two angles and a side
C. Three sides
D. Three angles
E. Right angle, hypotenuse and another side

Question 8:

• NECO 2008

Bello chooses a number randomly from 1 to 10. What is the probability that it is either odd or prime?

A. \(\frac{1}{10}\)
B. \(\frac{2}{5}\)
C. \(\frac{1}{2}\)
D. \(\frac{3}{5}\)
E. \(\frac{9}{10}\)

Question 9:

• NECO 2008

If tan α = \(\frac{1}{2}\) and tan β = \(\frac{1}{3}\) and both α and β are acute, find tan (α + β).

A. 0.015
B. 1
C. 10
D. 39.81
E. 45

Question 10:

• NECO 2008

Multiply (3\(\sqrt{a}\) - 4a) by (4a + 3\(\sqrt{a}\))

A. 9a + 16a²
B. 9a – 16a²
C. 3a + 16a²
D. 3a - 16a²
E. A - 16a²