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If tan x = 1, evaluate sin x + cos x, leaving your answer in the surd form
A2\(\sqrt{2}\)
B\(\frac{1}{2} \sqrt{2}\)
C\(\sqrt{2}\)
D2
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Question 912
waec2008
If xo is obtuse, which of the following is true?
Ax . 90
B180 < x < 270
Cx < 90
D90 < x < 180
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Question 913
waec2008
The angles of a quadrilateral are (x + 10)o, 2yo, 90o and (100 - y)o, Find y in terms of x
Ay = 160 + x
By = 100 + x
Cy = 160 - x
Dy = x - 100
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Question 914
waec2008
If the volume of a cube is 343cm3, find the length of its side
A3cm
B6cm
C7cm
D96cm
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Question 915
waec2008
PQR is a sector of a circle centre O, radius 4cm. If PQR = 30o, find, correct to 3 significant figures, the area of sector PQR. [Take \(\pi = \frac{22}{7}\)]
A4.19cm2
B8.38cm2
C10.5cm2
D20.9cm2
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Question 916
waec2008
Simplify: \(\frac{2x^2 - 5x - 12}{4x^2 - 9}\)
A\(\frac{x + 4}{2x + 3}\)
B\(\frac{x + 4}{2x - 3}\)
C\(\frac{x - 4}{2x + 3}\)
D\(\frac{x - 4}{2x - 3}\)
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Question 917
waec2008
If p = \(\frac{3}{5} \sqrt{\frac{q}{r}}\), express q in terms of p and r
A\(\frac{9}{25} pr^2\)
B\(\frac{9}{25} p^2r\)
C\(\frac{25}{9} p^2r\)
D\(\frac{25}{9} pr^2\)
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Question 918
waec2008
If 4y is 9 greater than the sum of y and 3x, by how much is y greater than x?
A3
B6
C9
D12
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Question 919
waec2008
Factorize 5y2 + 2ay - 3a2
A(a - y)(5y - 3a)
B(y - a)(5y - 3a)
C(y - a)(5y + 3a)
D(y + a)(5y - 3a)
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Question 920
waec2008
Given that x = 2 and y = -\(\frac{1}{4}\), evaluate \(\frac{x^2y - 2xy}{5}\)
A trader bought 100 tubers at 5 for N350.00. She sold them in sets of 4 for N290.00. Find her gain percent.
A3.6%
B3.5%
C3.4%
D2.55
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Question 925
waec2008
P naira invested for 4 years invested for 4 years at r% simple interest per annum yields 0.36 p naira interest. Find the value of r
A1\(\frac{1}{9}\)
B1\(\frac{4}{9}\)
C9
D11
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Question 926
waec2008
Simplify \(\sqrt{50} + \frac{10}{\sqrt{2}}\)
A10
B10\(\sqrt{2}\)
C20
D20\(\sqrt{2}\)
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Question 927
waec2008
Evaluate \(\frac{(3.2)^2 - (4.8)^2}{3.2 + 4.8}\)
A-0.08
B-1.60
C-10.24
D-12.80
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Question 928
waec2008
If x% of 240 equals 12, find x
Ax = 1
Bx = 3
Cx = 5
Dx = 7
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Question 929
jamb2008
A student sitting on a tower 68 metres high observes his principal's car at the angle of depression of 20o. How far is the car from the bottom of the tower to the nearest metre?
A184m
B185m
C186m
D187m
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Question 930
jamb2008
Calculate the distance between points L(-1, -6) and M(-3, -5)
