Maths MCQS for NTS Set 4

3/2 is

Whole number

An irrational number

A rational number

A positive integer

In which quadrant is the solution of the equation sin x – 1 = 0

I quadrant

II quadrants

III and Iv quadrants

II and III quadrants

d/dx ?x¹ dx =________.

X³

3x³

x⁴/4

1/4 x⁴

An m x n matrix is said to be rectangular if

Non commutative group w.r.t. multiplication

Forms a group w.r.t. addition

Doesn’t form a group

Forms a group w.r.t. multiplication

2/(x+1)(x-1) = A/x+1 + B/x-1 corresponds to

? = b/a and ? = ca

? = -b/a and ?= c/a

?² + ?² = 1

? = a/b and ? = -c/a

x is a member of the set {-1,0,3,5} y is a member of the set {-2,1,2,4} which is possible?

x- y =-6

x -y > 6

x -y < -6

None

One of the roots of the equation 2x² + 3x + n = 0 is the reciprocal of the other, then n = ——————–

Number of col A is same as number of rows of B

Both A,B do not have the same order

Both A,B have the same number of columns

Number of rows of A is same as number of col of B

If Sin ? =Cos? then ?=

60°

45°

30°

90°

If 2 Sin x Cos 2 x = Sin x then?

X = n? + ?/2

X = n? +?/3

X = n?+ ?/6

X = n? +1

What is the conjugate of -7 -2i ?

?53

7 + 2i

-7 + 2i

7-2i