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ECAT Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
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K/6
2K
3K
6K
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Question # 3
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An expression
Rational fraction
Equation
Identity
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Question # 4
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X = 100 sin
θ
X = 10 sin
θ
X = 100 sec
θ
None of these
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Question # 5
If x - 2 is a factor of ax2- 12x + a = 2a, then a = ______
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-5
5
0
1
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Question # 6
For trival solution |A| is
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A
|A| = 0
A = 0
|A|≠ 0
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Question # 7
y=-a is the equation of the directrix of
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y2 =4ax
x2=-4ay
x2=4ay
y2=-4ax
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Question # 8
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Question # 9
If a and b are real numbers then a+b is also real number this law is called
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associative law of addition
closure law of addition
Distributive law of addition
Commutative law of addition
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Question # 10
If A is such that a,A,B are in A.P then A is called
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A.M
Common ratio
Common difference
None of these
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Question # 11
The function ø(x) is ananti derivativeof function f (x),x∈Df if
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ø′(x) =∫f(x)dx
ø(x) =∫f(x)dx
ø′(x) =f(x)
ø(x) =∫′(x)dx
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Question # 12
The line 3x - 4y = 0
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Is a tangent to the circle x
2
+ y
2
= 25
Is a normal to the circle x
2
+ y
2
=25
Does not meet the circle x
2
+ y
2
= 25
Does not pass thro' the origin
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Question # 13
In triangle ABC, in which b=95, c=34, a =52
𝜊
then the value of a=
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18 cm
18.027 cm
20.7 cm
19 cm
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Question # 14
If B ={x/x€ Z ^ - 3 < x < 6}, then n (B) =
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5
{-3,-2,-1,0,1,2,3,4,5,6}
8
9
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Question # 15
The approximate percentage increase in the volume of a cube if the length of its each edge changes from 5 to 5.02 is
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1.2%
1.5%
0.16%
100.16%
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Question # 16
The matrix A = [aij]mxn with m ≠n is always
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Symmetric
Hermition
Skew-symmetric
None
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Question # 17
If f(x) = x
3
- 2x
2
+ 4x -1 then f(0) is
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0
1
-1
none of these
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Question # 18
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Question # 19
csc(-π/2) = __________;
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0
1
-1
Undefined
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Question # 20
A function from A to B is denoted by
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f: A→ B
f: B → A
f: → A :B
f → A→ B
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Question # 21
If f(x) = x
3
- 2x
2
+ 4x -1 then f(2) is
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7
-16
16
-9
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Question # 22
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2
0
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Question # 23
Cos-1(x)=
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cos x
x
tan-1(-x)
Sec-1 (1/x)
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Question # 24
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Question # 25
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1
0
-1
2
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Question # 26
{x|x∈R∧x≠x} is a
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Infinite set
Null set
Finite set
None of these
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Question # 27
Sin 90° = ______
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-1
0
1
Undefined
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Question # 28
The number of x-intercepts of y= sin x in his period
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0
1
2
3
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Question # 29
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6
20
0
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Question # 30
The line l is horizontal if
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m is undefined
m=0
m=1
m=0-1
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Question # 31
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range of f
domain of f
both (a) and (b)
none of these
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