Question # 1

Choose an answer

0

20

90

80

The property used in -3 <-2 ⇒0 <1

Choose an answer

Commutative property

Additive property of inequality

Additive inverse

Additive identity

Number of ways of writing the letters of WORD taken all at a time is

Choose an answer

24

4

12

6

The probability that a slip of numbers divisible by 4 is picked from the slips of number 1,2,3,4,......10 is

Choose an answer

1/5

2/5

1/10

3/10

A square matrix A for which A^t= -A is called a

Choose an answer

Column matrix

Symmetric matrix

Skew-symmetric matrix

Row matrix

Choose an answer

Always negative

Zero

Always positive

Infinity

The polynomial x - a is a factor of the polynomial f(x) if and only if

Choose an answer

f(a) is positive

f(a) is negative

f(a) = 0

None of these

The area of the rhombus whose vertices are A(0,0),B(2,1),C(3,3),D(1,2) is

Choose an answer

36 square units

3 square units

6 square units

18 square units

The range of function f(x)=-x2+2x-1 is

Choose an answer

R

(-∞,0]

(-∞,1]

[0,∞)

0 (zero) is

Choose an answer

An irrational number

A rational number

A negative integer

A positive number

Choose an answer

The solution of the quadratic equation x2 -7x + 10=0, is

Choose an answer

2

5

2,5

7

Choose an answer

Cos-1(x)=

Choose an answer

cos x

x

tan-1(-x)

Sec-1 (1/x)

We also the system of non-homogeneous linear equations by

Choose an answer

a and b

b and c

c and a

a, b and c

If a,b,c are three non-coplanar vector then [a +b,b +c,c +a] = _____

Choose an answer

[a.b.c]

2[a,b,c]

[abc]-2

2[abc]2

Two circles x2 +y2 +8x -9= 0 and x2+y2+6y +k =0 touchinternallyif the value of k is

Choose an answer

k = 9

k = ±9

k=-9

k=11

The sum of the even coefficients in the expansion (1 + x)ⁿis

Choose an answer

n²

2^n-2

2^n-1

2ⁿ

If S is a sample space and event set E = S then P(E) is

Choose an answer

>0

1

<1

0

Choose an answer

Additive property of inequality

Commutative property

Additive inverse

Additive identity

Choose an answer

-x

Infinite set

{-4, 4}

None of these

The set of complex numbers forms

Choose an answer

Commutative group w.r.t addition

Commutative group w.r.t multiplication

Commutative group w.r.t division

Non commutative group w.r.t addition

Choose an answer

- cot 4x + c

cot 4x + c

tan 4x + c

- tan 4x + c

If a 1-1 correspondence can be established b/w two sets A and B, then they are called

Choose an answer

Equal sets

Equivalent sets

Over lapping sets

None of these

The range of y = cot x = ______

Choose an answer

-∞> y > +∞

-∞> x > +∞

-∞ <y < +∞

None of above

In (x + iy), y is called as

Choose an answer

Imaginary part

Complex number

Real part

None of above

If two balls are drawn from a bag containing 3 white, 4 black and 5 red balls. Then the probability that the drawn balls are of different colours is

Choose an answer

1 / 66

3 / 66

19 / 66

47 / 66

If l, m, n are the d.c.'s of a line, then

Choose an answer

l2+ m2+ n2= 0

l2+ m2+ n2= 1

l + m + n = 1

l = m = n = 1

Range of tan x is ______

Choose an answer

[-1, -]

R

Negative real numbers

R - {x | - 1 < x < 1}

More Classes

Other Links

Mathematics ECAT Pre Engineering Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer