Waec Further Mathematics 2008 Past Questions and Answers

Question 31:

• WAEC 2008

Express \(r = (12, 210°)\) in the form \(a i + b j\).

A. \(6(-i + \sqrt{3} j)\)
B. \(6(-\sqrt{3} i - j)\)
C. \(6(i - \sqrt{3} j)\)
D. \(6(i + \sqrt{3} j)\)

Question 32:

• WAEC 2008

A test consists of 12 questions out of which candidates are to answer 10. If the first 6 are compulsory, in how many ways can each candidate select her questions?

A. 40
B. 25
C. 15
D. 10

Question 33:

• WAEC 2008

A body starts from rest and moves in a straight line with uniform acceleration of \(5 ms^{-2}\). How far, in metres, does it go in 10 seconds?

A. 50 m
B. 250 m
C. 350 m
D. 500 m

Question 34:

• WAEC 2008

If n items are arranged two at a time, the number obtained is 20. Find the value of n.

A. 5
B. 10
C. 15
D. 40

Question 35:

• WAEC 2008

If \(p = \begin{pmatrix} 2 \\ -2 \end{pmatrix} \) and \(q = \begin{pmatrix} 3 \\ 4 \end{pmatrix}\), find \(|q - \frac{1}{2}p|\).

A. \(2\sqrt{2}\)
B. \(\sqrt{13}\)
C. \(5\)
D. \(\sqrt{29}\)