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ECAT Mathematics Online Test MCQs With Answers
Question # 1
Choose an answer
A
A'
U
None of these
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Question # 2
Period of sin x is
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Question # 3
Out of 40 consecutive natural numbers, two are chosen at random. Probability that the sum of the numbers is odd, is
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14 / 29
20 / 39
1 / 2
n
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Question # 4
QUQ'
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Question # 5
Number of permutations of n distinct objects taken r(<n - 3) at a time which exclude 3(<n) particular objects is
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3! P(n, r - 3)
P(n, 3) P(n, r - 3)
P(r, r)P(n, r - 3)
P(n - 3, r)
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Question # 6
Roots of the equation x
2
+ 5x - 1 = 0 are
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Rational
Irrational
Complex
None of these
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Question # 7
f(x) = x3-x/x2+1 is :
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an even function
an odd function
an even and implicit function
neither even nor a odd
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Question # 8
The order of the matrix A is 3 x 5 and that of B is 2 x 3.The order of the matrix BA is
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2 x 3
3 x 2
2 x 5
5 x 2
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Question # 9
Tan 30° = _____
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Question # 10
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0
1
undefined
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Question # 11
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Question # 12
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y : x
x : y
-y : x
-x : y
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Question # 13
What is the circular measure of the angle between the hands of a watch at 4 O'clock
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Question # 14
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Biconditional
Implication
Antecedent
Hypothesis
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Question # 15
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Question # 16
Period of Cotangent function is
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π
-π
0
-2π
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Question # 17
If ax + bx + c =0 is satisfied by every value of x,then
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b = 0,c = 0
c = 0
b = 0
a = b = c = 0
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Question # 18
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2 and 9
3 and 2
2/3 and 9
3/2 and 6
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Question # 19
Which of the following is a vector.
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work
time
density
electric field
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Question # 20
If A, G, H are the arithmetic, geometric and harmonic means between a and b respectively then A, G, H are in
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A. P.
G. P.
H. P.
None of these
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Question # 21
ab > 0 and a > 0 then
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a > b
a < b
a = b
None
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Question # 22
Which of the following integrals can be evaluated
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Question # 23
If the 4th term in the expansion of (px + x
-1
)
m
is 2.5 for all x
∈ R, then
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Question # 24
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0
1
2
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Question # 25
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Question # 26
A function f(x) is said to be the periodic function if for all x in the domain of f, there exists a smallest positive number p such the f(x + p) = ______
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f(p)
f(x)
f(o)
None of these
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Question # 27
Φ
set is the ______ of all sets?
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Subset
Union
Universal
Intersection
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Question # 28
Every real number is
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a positive integer
a rational number
a negative integer
a complex number
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Question # 29
Sum of first n terms of an arithmetic series is
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Question # 30
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Question # 31
For all points (x,y) on y-axis
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x is positive
x = 0
x is negative
y = 0
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