Further Mathematics Past Questions

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Past Questions

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Question 1 of 20 799 total questions
Question 241
waec 2014

Simplify: \((1 - \sin \theta)(1 + \sin \theta)\).

A\(\sin^{2} \theta\)
B\(\sec^{2} \theta\)
C\(\tan^{2} \theta\)
D\(\cos^{2} \theta\)
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Question 242
waec 2014

If \(\frac{1}{5^{-y}} = 25(5^{4-2y})\), find the value of y.

A4
B2
C-4
D-5
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Question 243
waec 2013

A body is kept at rest by three forces \(F_{1} = (10N, 030°), F_{2} = (10N, 150°)\) and \(F_{3}\). Find \(F_{3}\).

A(12N, 090°)
B(10N, 270°)
C(10N, 180°)
D(10N, 120°)
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Question 244
waec 2013

If \(\frac{^{n}C_{3}}{^{n}P_{2}} = 1\), find the value of n.

A8
B7
C6
D5
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Question 245
waec 2013

Find the equation of the straight line that passes through (2, -3) and perpendicular to the line 3x - 2y + 4 = 0.

A2y - 3x = 0
B3y - 2x + 5 = 0
C3y + 2x + 5 = 0
D2y - 3x - 5 = 0
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Question 246
waec 2013

If \(V = \begin{pmatrix} -2 \\ 4 \end{pmatrix}\) and \(U = \begin{pmatrix} -1 \\ 5 \end{pmatrix}\), find \(|U + V|\).

A\(3\sqrt{10}\)
B\(\sqrt{82}\)
C15
D\(2\sqrt{5}\)
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Question 247
waec 2013

Calculate the mean deviation of 1, 2, 3, 4, 5, 5, 6, 7, 8, 9.

A2
B3
C4
D5
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Question 248
waec 2013

If \(g(x) = \frac{x + 1}{x - 2}, x \neq -2\), find \(g^{-1}(2)\).

A3
B2
C\(\frac{3}{4}\)
D-3
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Question 249
waec 2013

P and Q are the points (3, 1) and (7, 4) respectively. Find the unit vector along PQ.

A\(\begin{pmatrix} 4 \\ 3 \end{pmatrix}\)
B\(\begin{pmatrix} 0.6 \\ 0.8 \end{pmatrix}\)
C\(\begin{pmatrix} 0.8 \\ 0.6 \end{pmatrix}\)
D\(\begin{pmatrix} -0.8 \\ 0.6 \end{pmatrix}\)
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Question 250
waec 2013

Two out of ten tickets on sale for a raffle draw are winning tickets. If a guest bought two tickets, what is the probability that both tickets are winning tickets?

A\(\frac{1}{80}\)
B\(\frac{1}{45}\)
C\(\frac{1}{20}\)
D\(\frac{1}{10}\)
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Question 251
waec 2013

Given that \(P = \begin{pmatrix} 3 & 4 \\ 2 & x \end{pmatrix}; Q = \begin{pmatrix} 1 & 3 \\ -2 & 4 \end{pmatrix}; R = \begin{pmatrix} -5 & 25 \\ -8 & 26 \end{pmatrix}\)  and PQ = R, find the value of x.

A-5
B-2
C2
D5
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Question 252
waec 2013

Find the upper quartile of the following scores: 41, 29, 17, 2, 12, 33, 45, 18, 43 and 5.

A45
B41
C33
D21
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Question 253
waec 2013

If \(2\sin^{2}\theta = 1 + \cos \theta, 0° \leq \theta \leq 90°\), find \(\theta\).

A30°
B45°
C60°
D90°
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Question 254
waec 2013

If \(s = 3i - j\) and \(t = 2i + 3j\), find \((t - 3s).(t + 3s)\).

A-77
B-71
C-53
D-41
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Question 255
waec 2013

A particle is acted upon by two forces 6N and 3N inclined at an angle of 120° to each other. Find the magnitude of the resultant force.

A\(18\sqrt{3}\) N
B\(27\) N
C\(24\) N
D\(3\sqrt{3}\) N
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Question 256
waec 2013

The equation of a circle is \(x^{2} + y^{2} - 8x + 9y + 15 = 0\). Find its radius.

A5
B\(\frac{1}{2}\sqrt{15}\)
C\(\frac{1}{2}\sqrt{85}\)
D\(\sqrt{85}\)
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Question 257
waec 2013

Two bodies of masses 3kg and 5kg moving with velocities 2 m/s and V m/s respectively in opposite directions collide. If they move together after collision with velocity 3.5 m/s in the direction of the 5kg mass, find the value of V.

A7.8 m/s
B6.8 m/s
C5.6 m/s
D4.6 m/s
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Question 258
waec 2013

Express \(\frac{x^{2} + x + 4}{(1 - x)(x^{2} + 1)}\) in partial fractions.

A\(\frac{x^{2}}{x^{2} + 1} + \frac{x + 4}{1 - x}\)
B\(\frac{3}{1 - x} + \frac{2x + 1}{x^{2} + 1}\)
C\(\frac{x^{2}}{1 - x} + \frac{x + 4}{x^{2} + 1}\)
D\(\frac{3}{1 - x} + \frac{2x + 2}{x^{2} + 1}\)
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Question 259
waec 2013

A circular ink blot on a piece of paper increases its area at the rate \(4mm^{2}/s\). Find the rate of the radius of the blot when the radius is 8mm. \([\pi = \frac{22}{7}]\).

A0.20 mm/s
B0.08 mm/s
C0.25 mm/s
D0.05 mm/s
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Question 260
waec 2013

The sales of five salesgirls on a certain day are as follows; GH¢ 26.00, GH¢ 39.00, GH¢ 33.00, GH¢ 25.00 and GH¢ 37.00. Calculate the standard deviation if the mean sale is GH¢ 32.00. 

AGH¢ 5.65
BGH¢ 5.66
CGH¢ 6.5
DGH¢ 6.56
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