Question # 1

∀x,y∈R and x> 0 , y>0, if x > y

Choose an answer

None of these

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

Choose an answer

24

4

12

6

If -1 < x < 0, which of the following statements must be true?

Choose an answer

x < x²< x³

x < x³< x²

x²< x³< x

x²< x < x³

For any positive integer n

Choose an answer

ABn = Bn A ⇔ AB = BA

ABn = Bn A⇔ A,B are square matrices and AB = BA

ABn = BnA⇔ A + B

ABn = BnA ⇔ A and B are square matries

Choose an answer

an A.P.

a G.P.

a H.P.

None of these

The domain of f(x) = log x is

Choose an answer

[0,∞]

(0,∞)

[0,∞[

[∞,∞]

Choose an answer

If a^x= b^y= c^zand a, b, c are in G.P. then x, y, z are in

Choose an answer

A.P.

G.P.

H.P.

None of these

Choose an answer

405 / 256

504 / 259

450 / 263

None

The identity element of a set X with respect to intersection in P(x) is

Choose an answer

X

Does not exist

∅

None of these

The function discontinuous at x = 0 is (1) tan x (II) cot x (III) sec x (iv)cosec x)

Choose an answer

I & III

I & IV

II & IV

II & III

If one root of the equation ix²- 2(i + 1) x +(2 - i) = 0 is 2 - i, then the other root is

Choose an answer

-i

2 + i

i

2 - i

Choose an answer

Closure law of addition

Associative law of addition

Additive inverse

Additive identity

Choose an answer

If a and b are real numbers then a+b is also real number this law is called

Choose an answer

associative law of addition

closure law of addition

Distributive law of addition

Commutative law of addition

Choose an answer

2

-2

none of these

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

The roots of the equation 4x - 3.2x+2 + 32 = 0 would include

Choose an answer

1 and 3

1 and 4

1 and 2

2 and 3

The sum of the roots of the equation x2 -6x +2 = 0 is

Choose an answer

-6

2

-2

6

Three consecutive terms of a progression are 30, 24, 20. The next terms of the progression is

Choose an answer

graph of trigonometric function y = sec x does not meet

Choose an answer

x - axis

y -axis

both axis

None of these

Considering Cosine Rule of any triangle ABC, possible measures of angle A includes

Choose an answer

Angle A is obtuse

Angle A is acute

Angle A is right-angle

All of above

A function whose domain is a subset of natural numbers is called ______

Choose an answer

Identity function

Sequence

Onto function

Series

If A = {2m/m³= 8 , m€ Z} then A =

Choose an answer

{1,8,27}

{4}

(2,4,6}

{2,16,54}

Arithmetic mean between a and b is

Choose an answer

The range of y=x2 + 1 is the set of non-negative real numbers except

Choose an answer

0≤ y < 1

0 < y < 1

0≤ y≤ 1

0 < y≤1

The mid point of the line segment joining the points (3,-1) and (-3,1) is

Choose an answer

(3,-1)

(0,0)

(2,2)

(4,4)

1/3 is ______

Choose an answer

A prime number

An integer

A rational number

An irrational number

The set {x|x∈N∧x-4=0} in tabular form is

Choose an answer

{-4}

{0}

{}

None of these

Choose an answer

8

4

64

A matrix in which the number of rows is equal to the number of columns is called a

Choose an answer

Diagonal matrix

Rectangular matrix

Square matrix

Scalar matrix

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