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Online Tests
Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
The positive value of k for which the equation x2 + kx + 64 = 0 has one of the roots 0
Choose an answer
4
64
8
All values of k
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Question # 2
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2
4
8
12
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Question # 3
The sum of first twenty odd integers in A.P is
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400
397
404
408
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Question # 4
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Question # 5
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Question # 6
The value of p for which both the roots of the equation 4x2- 20x + (25p2+ 15 p - 66) = 0 are less than 2, lies in
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Question # 7
Roots of the equation 2x
2
- 7x + 3 = 0 are
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Rational
Irrational
Complex
None of these
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Question # 8
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Question # 9
If 3x
4
+ 4x
3
+ x - 5 is divided by x + 1, then the reminder is
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0
7
-7
5
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Question # 10
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100
99
0
none of these
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Question # 11
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A
B
A'B'
B'A
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Question # 12
Number of combination of zero or more things out of n different things
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nPn
nPr
nCr
2n
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Question # 13
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none of these
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Question # 14
sin h x = ___________
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Question # 15
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sin h x
cos h x
tan h x
cot h x
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Question # 16
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2x cos x2
2sinxcosx
- sin x2
2x sin x2
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Question # 17
The general solution of tan 3x = 1 is
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Question # 18
i =
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Question # 19
Sec 30° = ______
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Question # 20
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Question # 21
Latus rectum = 4 x ______________
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focal distance of the vertex
Chord
Focus
1/2
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Question # 22
Write the first four terms of the arithmetic sequence 5, 2, -1, ... is
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3
-4
7
1
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Question # 23
The distance of the plane 2x - 3y + 6z + 14 = 0 from the origin is
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14
2
-2
11
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Question # 24
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5
20
9
4
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Question # 25
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2C
C
3
1
0
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Question # 26
An equation which holds good for all values of variables is called
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Equation
Conditional equation
Constant
None
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Question # 27
The eccentricity of the parabola y
2
= -8x is
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-2
2
-1
1
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Question # 28
The identity element with respect to subtraction is
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0
1
-1
Does not exist
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Question # 29
The last term of (1+2x)-2
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(-1)-2 (2x)-2
(-1)-4(-2x)-2
(-1)-3(2x)-3
Does not exist
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Question # 30
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Question # 31
sin(180° -
θ)=
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cos
θ
-cos
θ
Tan
θ
Sin
θ
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