Mathematics Past Questions

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49 questions JAMB 2359 WAEC 1853 NECO 179 POST_UTME 6 CUSTOM 10
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Past Questions

49 questions
Question 1 of 20 49 total questions
Question 11
jamb 1999

Find the value of x for which the function y = x\(^3\) - x has a minimum value.

A\(-\sqrt{3}\)
B\(-\frac{\sqrt{3}}{3}\)
C\(\frac{\sqrt{3}}{3}\)
D\(\sqrt{3}\)
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Question 12
jamb 1999

Evaluate \(\int^{1}_{-2}(x-1)^{2}dx\)

A\(\frac{-10}{3}\)
B7
C9
D11
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Question 13
jamb 1999
What is the derivative of t2 sin (3t - 5) with respect to t?
A6t cos (3t - 5)
B2t sin (3t - 5) - 3t2 cos (3t - 5)
C2t sin (3t - 5) + 3t2 cos (3t - 5)
D2t sin (3t - 5) + t2 cos 3t
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Question 14
jamb 1999

Find the volume of solid generated when the area enclosed by y = 0, y = 2x, and x = 3 is rotated about the x-axis.

A81 π cubic units
B36 π cubic units
C18 π cubic units
D9 π cubic units
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Question 15
jamb 1999

Evaluate: \(\int^{z}_{0}(sin x - cos x) dx \hspace{1mm}

Where\hspace{1mm}letter\hspace{1mm}z = \frac{\pi}{4}. (\pi = pi)\)

A\(\sqrt{2 +1}\)
B\(\sqrt{2 }-1\)
C\(-\sqrt{2 }-1\)
D\(1-\sqrt{2}\)
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Question 16
jamb 1999

Find the area bounded by the curve y = x(2-x). The x-axis, x = 0 and x = 2.

A4 sq units
B2 sq units
C\(\frac{4}{3}sq\hspace{1 mm}units\)
D\(\frac{1}{3}sq\hspace{1 mm}units\)
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Question 17
jamb 1999
Find the equation of the locus of a point P(x,y) such that PV = PW, where V = (1,1) and W = (3,5)
A2x + 2y = 9
B2x + 3y = 8
C2x + y = 9
Dx + 2y = 8
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Question 18
jamb 1999

From a point P, the bearings of two points Q and R are N67ºW and N23ºE, respectively. If the bearing of R from Q is N68ºE and PQ = 150m, calculate PR

A120m
B140m
C150m
D160m
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Question 19
jamb 1999

Find the tangent to the acute angle between the lines 2x + y = 3 and 3x - 2y = 5.

A-7/4
B7/8
C7/4
D7/2
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Question 20
jamb 1999

In ∆MNO, MN = 6 units, MO = 4 units and NO = 12 units. If the bisector of angle M meets NO at P, calculate NP.

A4.8 units
B7.2 units
C8.0 units
D18.0 units
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Question 21
jamb 1999

A man 1.7m tall observes a bird on top of a tree at an angle of 30°. if the distance between the man's head and the bird is 25m, what is the height of the tree?

A26.7m
B14.2m
C\(1.7+(25\frac{\sqrt{3}}{2}m\)
D\(1.7+(25\frac{\sqrt{2}}{2}m\)
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Question 22
jamb 1999

Find a positive value of \(\alpha\) if the coordinate of the centre of a circle x\(^2\) + y\(^2\) - 2\(\alpha\)x + 4y - \(\alpha\) = 0 is (\(\alpha\), -2) and the radius is 4 units.

A1
B2
C3
D4
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Question 23
jamb 1999

Divide 4x\(^3\) - 3x + 1 by 2x - 1

A2x2-x+1
B2x2-x-1
C2x2+x+1
D2x2+x-1
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Question 24
jamb 1999

The first term of a geometric progression is twice its common ratio. Find the sum of the first two terms of the G.P if its sum to infinity is 8.

A8/5
B8/3
C72/25
D56/9
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Question 25
jamb 1999

Express \(\frac{1}{x^{3}-1}\) in partial fractions

A\(\frac{1}{3}(\frac{1}{x - 1} - \frac{(x + 2)}{x^{2} + x + 1})\)
B\(\frac{1}{3}(\frac{1}{x - 1} - \frac{x - 2}{x^{2} + x + 1})\)
C\(\frac{1}{3}(\frac{1}{x - 1} - \frac{(x - 2)}{x^{2} + x + 1})\)
D\(\frac{1}{3}(\frac{1}{x - 1} - \frac{(x - 1)}{x^{2} - x - 1})\)
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Question 26
jamb 1999

Three consecutive positive integers k, l and m are such that l\(^2\) = 3(k+m). Find the value of m.

A4
B5
C6
D7
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Question 27
jamb 1999

Factorize completely \(x^{2} + 2xy + y^{2} + 3x + 3y - 18\).

A(x+y+6)(x+y-3)
B(x-y-6)(x-y+3)
C(x-y+6)(x-y-3)
D(x+y-6)(x+y+3)
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Question 28
jamb 1999

A binary operation * is defined by a*b = ab+a+b for any real number a and b. if the identity element is zero, find the inverse of 2 under this operation.

A2/3
B1/2
C-1/2
D-2/3
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Question 29
jamb 1999
The sum of two numbers is twice their difference. If the difference of the numbers is P, find the larger of the two numbers
Ap/2
B3p/2
C5p/2
D3p
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Question 30
jamb 1999

If \(m*n = (\frac{m}{n} - \frac{n}{m}\)) for m, n belong to R, evaluate -3*4

A\(\frac{-25}{12}\)
B\(\frac{-7}{12}\)
C\(\frac{7}{12}\)
D\(\frac{25}{12}\)
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