Question # 1

Choose an answer

a-b=ab

ab=a

a+b=ab

The number of permutations of n objects of which there are n₁like of one kind, n₂like of the second kind and n₃like objects of third kind are

Choose an answer

5 / 12

3 / 8

5 / 8

7 / 4

If ax²+ bx + x = 0 is satisfied by every value of x, then

Choose an answer

b = 0, c = 0

c = 0

b = 0

a = b = c = 0

If A∩B=B, then n(A∩B) is equal to

Choose an answer

n(a)

n(a)+n(c)

n(c)

None of these

Choose an answer

The unit vector along z-axis is

Choose an answer

none of these

The minimum value of the quadratic function f(x) = x2 +6x -2, is

Choose an answer

11

6

-11

13

If sinθand cosθare the roots of the equation ax²- bx + c = 0, then a, b, c satisfy the relation

Choose an answer

b²- a²= 2ac

A²- b²= 2ac

A²+ b²= c²

B²+ a²= 2ac

P∉ A means

Choose an answer

Pis subset of A

Pis an element of A

P does not belongs to A

A does not element of P

If (1+x-2x³)⁶= 1+a₁x + a₂x²+ a₃x³+ ..... the the value of a₂+ a₄+ a₆+ .....+a₁₂will be

Choose an answer

32

31

64

1024

Choose an answer

x

y

The proposition S(n) is true∀n∈N,S(k+1) true when ______is true

Choose an answer

S(1)

Both a & c

S(k)

None

Choose an answer

4

3

2

1

The real number system contains.

Choose an answer

Positive Numbers

Negative numbers

Zero

(option a, b and c)

A ________ divides the plane into left and right half planes.

Choose an answer

Vertical line

Horizontal line

Non vertical line

Inequality

if a₁ =3, d=7 and a_n =59 , then the number of terms in A.P is

Choose an answer

7

9

11

13

sin(180° -θ)=

Choose an answer

cosθ

-cosθ

Tanθ

Sinθ

The set of natural is a semi group w.r.t

Choose an answer

Addition

Division

Subtraction

None of these

If | x | < 1, then the first two terms of (1 - x)^1/2are

Choose an answer

Every set is an improper subset of

Choose an answer

Empty set

Equivalent set

Itself

Singleton set

Choose an answer

If line through (4,3) and (2,k) is perpendicular to y =2x +3, then k =_______

Choose an answer

-1

1

-4

4

The number of permutation that can be formed from the letters of the word OBJECT is

Choose an answer

700

600

720

620

System of linear equations is inconsistent if

Choose an answer

System has no solution

System has one solution

System has two solution

None of above

If distance between (a,2) and (0,0) is 2 then a = _______

Choose an answer

0

2

4

Choose an answer

x =0, y =4

x = -1, y = 2

x = 2, y = 3

x = 3, y = 4

The graph of a linear function is

Choose an answer

a circle

triangle

a straight line

none of these

The set {-1,1} is

Choose an answer

Group under the multiplication

Group under addition

Does not form a group

Contains no identity element

More Classes

Other Links

ECAT Mathematics 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