Question # 1

When we expand (a + 2b)⁵then

Choose an answer

a⁵+ 10a⁴b + 40a³b²+ 80a²b³+ 80ab⁴+ 32b⁵

a⁵+ a⁴b + a³b²+ a²b³+ ab⁴+ b⁵

5a⁵+ 4a⁴b + 3a³b²+ 2a²b³+ 1 ab⁴+ b⁵

None

Choose an answer

Which of the vectors have opposite direction?

Choose an answer

The additive identity of real number is

Choose an answer

1

2

1/2

0

The roots of the equation ax²+ bx + c = 0 are real and equal if

Choose an answer

b²- 4ac < 0

b²- 4ac = 0

b²- 4ac > 0

None of these

Choose an answer

none of these

The number of subsets of a set having three elements is

Choose an answer

4

6

8

none of these

(x + 3) (x + 4) = x²+ 7x + 12 is ______

Choose an answer

Quadratic equation

Linear equation

Cubic equation

Identity

Choose an answer

ⁿC_r

ⁿ⁺¹C_r+1

ⁿC_r+1

None

Choose an answer

(2x+a+b+c)

(a+b+c)

(a+b+c+x)

0

If S and P are the sum and the product of roots of a quadratic equation, then the quadratic equation is

Choose an answer

x²+ Sx - P = 0

x²- Sx + P = 0

x²- Sx - P = 0

X²+ Sx + P = 0

Choose an answer

If a₁= a₂= 2, a_n= a_n-1- 1 (n > 2), then a₅is

Choose an answer

1

0

-1

-2

The set of complex numbers forms a group under the binary operation of

Choose an answer

Addition

none of these

Division

Subtraction

Choose an answer

Principle of equality of fractions

Rule for product of fractions

Golden rule of fractions

Rule for quotient of fractions

Choose an answer

0

-2

1

4

Choose an answer

0

-1-w²

Choose an answer

2

-3/2

1

0

Choose an answer

(-6,4)

(-3,2)

(6,-4)

(3, -2)

Range if y = cos x is

Choose an answer

-1≤ y≤ 1

-1 < y < 1

-∞ < x < +∞

None of these

x⁴- 3x³+ 3x + 1 = 0 is called ______

Choose an answer

Reciprocal equation

Exponential equation

Radical equation

None of these

Choose an answer

If five triangles are constructed having sides of the lengths indicated below, the triangle that will NOT be a right triangle is

Choose an answer

8, 15, 17

3, 4, 5

12, 15, 18

5, 12, 13

Point (2,0) lies on trigonometric function f(x)=______;

Choose an answer

sinx

cosx

tanx

secx

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

none of these

If 4 ⁶P_r= ⁶P_r+1, then r is equal to

Choose an answer

4

3

2

1

The square root of every incomplete square is an

Choose an answer

Rational numbers

Even numbers

odd numbers

Irrational numbers

Choose an answer

If f(√x)=sin x , then f′(x) =______;

Choose an answer

2xcosx2

cosx2

cos√x

None of these

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