Question # 1

An equation which holds good for all values of variables is called

Choose an answer

Equation

Conditional equation

Constant

None

A and B be two square matrices and if their inverse exist, the (AB)^-1=

Choose an answer

A^-1B^-1

AB^-1

A^-1B

B^-1A^-1

There are two middle terms in the expansion of (a+x)n if n is

Choose an answer

Even +ve integer

+ve integer

Odd +ve integer

All

The equation x2+ y2- 8x+ 6y+ 25= 0 represents

Choose an answer

A circle

A pair of straight lines

A point

None of these

The line 3x - 4y = 0

Choose an answer

Is a tangent to the circle x²+ y²= 25

Is a normal to the circle x²+ y²=25

Does not meet the circle x²+ y²= 25

Does not pass thro' the origin

Name the property used in 100 + 0 = 100

Choose an answer

Additive inverse

Multiplicative inverse

Additive identity

Multiplicative identity

Choose an answer

One-to-one and onto

One-to-one but not on to

Onto but not one-to-one

Neither one-to-one nor onto

x²+ x - 6 = 0 is

Choose an answer

An equation

An identity

A polynomial

None of these

Choose an answer

cos 2x + c

- cos 2x + c

tan 2x + c

cot 2x + c

Matrices A = [aij] 2 x 3 and B =[bij] 3 x 2 are suitable for

Choose an answer

BA

A²

AB

B²

Name the property used in 4 x (5 x 8) = ( 4 x 5) x 8

Choose an answer

Associative property of addition

Associative property of multiplication

Additive identity

Multiplicative identity

Choose an answer

Every irrational number is

Choose an answer

A real number

A prime number

A natural number

An integer

Choose an answer

The square root of 2i - 20i is

Choose an answer

+-(5 - 2i)

+-(5 + 2i)

(5 - 2i)

None of these

The measure of the angle subtended at the centre of the circle by an arc, whose length is equal to the radius of the circle is

Choose an answer

1⁰

1'

1"

1 rad

A square matrix A = [aij] is lower triangular matrix when

Choose an answer

aij = 0 for all i<j

bij = 0

cij = 0

dij = 0

Choose an answer

5x^{4 + c}

1/6 x⁶+ c

5x²+ c

1/5 x⁶+ c

If z1 = 2 + 6i and z2 = 3 + 7i then which expression defines the product of z1 and z2

Choose an answer

36 +(-32)i

-36+32i

6+(-11)i

0, +(-12)i

e-radii are denoted by

Choose an answer

η

r2

r3

All of these

A disjunction of two statement p and q is true

Choose an answer

p is false

q is false

Both p and q are false

One of p and q is true

If y is an image of x under the function f, then we write

Choose an answer

y = f(x)

x = f(y)

y = x

none of these

If the lines 2x-3y-1=0,3x-y-5=0 and 3x+py+8=0 meet at a unique point then

Choose an answer

p = -14

p = -1

p =0

p=12

If a particle moves according to the law s = t³- t², then its velocity at time t = 1.5 is

Choose an answer

9/2

15/4

5

None

The set X is

Choose an answer

Proper Subset of X

Not A subset of X

Improper Subset of X

None of these

The area of the circle centred at (1,2) and passing through (4,6) is

Choose an answer

30 πsq.units

5π sq.units

15π sq.units

25π sq.units

Z is the set of integers, (z, *) is a group with a * b = a + b + 1, a, b∈G. then inverse of a is

Choose an answer

-a

a + 1

-2 -a

None of these

A set having only one element is called

Choose an answer

An empty set

Universal set

A singleton set

A power set

What is range of the function g (x) =|x-3|?

Choose an answer

[0 ,∞ )

(0 ,∞)

(-∞ ,3]

[0,∞)

Choose an answer

√2 is a number

Choose an answer

Rational

Irrational

Even

Odd

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