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ECAT Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
u,v,wand u x (v.w) are
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Equal
Parallel
Additive immense of each other
Meaningless
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Question # 3
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A
A'
U
A A'
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Question # 4
The equation of the circle wit (-1, 1) and radius 2 is
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Question # 5
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Commutative law of multiplication
Closure law of multiplication
Associative law of multiplication
Multiplication identity
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Question # 6
Area of inscribed circle is
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π R2
π η2
π r22
π r2
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Question # 7
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Question # 8
If the roots of ax
2
+ b = 0 are real and distinct then
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ab > 0
a = 0
ab < 0
a > 0, b > 0
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Question # 9
The set of complex numbers forms a group under the binary operation of
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Addition
none of these
Division
Subtraction
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Question # 10
In the function f: A⟶B, the elements of a are called
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Images
Pre-images
ranges
Parameters
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Question # 11
An experiment yields 3 mutually exclusive and exhaustive events A, B, C, if P(A) =2 and P(B) = 3. then P(C) =
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1 / 11
2 / 11
3 / 11
6 / 11
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Question # 12
Name the property used in 100 + 0 = 100
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Additive inverse
Multiplicative inverse
Additive identity
Multiplicative identity
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Question # 13
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Question # 14
2cos2 a/2 =______;
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1+sina
1-sina
1+cosa
1-cosa
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Question # 15
Matrices are represented by
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Natural numbers
Real numbers
Small letters
Capital letters
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Question # 16
Trival solution of homogeneous linear equation is
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(0, 0, 0)
(1, 2, 3)
(1, 3, 5)
a, b and c
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Question # 17
The point which divides the line segment joining the points (a, b) and (c, d) in the ratio 2 : 3 internally is
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none of these
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Question # 18
The value of x and y when (x + iy)2 = 5 - 4i
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x = 2, y = -1
x = -2, y = 1
x = 2, y = -i
x = 2, y = 2
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Question # 19
Which of the following is a scalar
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weight
force
speed
momentum
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Question # 20
Range of 3 cot x is ______
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[-1, 1]
[-3, 3]
R
None of these
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Question # 21
The element range of sequence are called
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Series
progression
Members
Terms
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Question # 22
The period of the function f(x) = sin
4
x + cos
4
x is
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π
π
/2
2
π
None of these
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Question # 23
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Question # 24
The arbitrary constants involving in the solution can be determined by the given conditions. Such conditions are called
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Boundaries
Variable separable
Initial values
None
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Question # 25
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Additive property of inequality
Commutative property
Additive inverse
Additive identity
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Question # 26
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Question # 27
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Even
Odd
Prime
None of these
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Question # 28
For each even natural number n (n
2
-1) is divisible by
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6
3
4
8
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Question # 29
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1
2
3
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Question # 30
The value of sin 28°cos 17°+cos 28°sin 17°is
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Question # 31
{0} is a
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Empty set
Singleton set
Zero set
Null Set
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