How good are you with figures and formulas? Find out with these Mathematics past questions and answers. This Test is useful for both job aptitude test candidates and students preparing for JAMB, WAEC, NECO or Post UTME.
If tan x = 1, evaluate sin x + cos x, leaving your answer in the surd form
2\(\sqrt{2}\)
\(\frac{1}{2} \sqrt{2}\)
\(\sqrt{2}\)
2
Correct answer is C
tan x = 1; x = tan-1(10 = 45o
sin x + cos x
= sin 45o + cos 45o
= \(\frac{\sqrt{2}}{2} + \frac{\sqrt{2}}{2}\)
= \(\frac{\sqrt{2} + \sqrt{2}}{2}\)
= \(\frac{2\sqrt{2}}{2}\)
= \(\sqrt{2}\)
If xo is obtuse, which of the following is true?
x . 90
180 < x < 270
x < 90
90 < x < 180
Correct answer is D
obtuse angle \(\to\) 90o < x < 180o
The angles of a quadrilateral are (x + 10)o, 2yo, 90o and (100 - y)o, Find y in terms of x
y = 160 + x
y = 100 + x
y = 160 - x
y = x - 100
Correct answer is C
Sum of the angles in a quadrilateral = 360o
(x + 10o) + 2y + 90o + 100 - y = 360o
x + y + 200 = 360o
y = 360 - 200 - x
y = 160 - x
If the volume of a cube is 343cm3, find the length of its side
3cm
6cm
7cm
96cm
Correct answer is C
Volume of a cube = (side)3
= (side)3
(side)3 = 343
side = 3\(\sqrt{343}\)
side = 7cm
4.19cm2
8.38cm2
10.5cm2
20.9cm2
Correct answer is A
Given q2 = 25 - r2.....(1)
from pythagora's theorem
P2 = q2 + r2.......(2)
put (1) into (2)
p2 = 25 - p2 + x2
p2 = 25
p = \(\sqrt{25}\)
= 5