Question # 1

An m x n matrix is said to be rectangular if

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Forms a group w.r.t. addition

Non commutative group w.r.t. multiplication

Forms a group w.r.t. multiplication

Doesn't form a group

If 1 + Cos x = 0 then x =

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π +2n π

π + nπ

π - nπ

π/2

There are 30 Red balls and 25 Green balls in a bag of a ball is drawn from the bag randomly what is the probability that a Blue ball comes out?

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1

0.5

0

None

The radius of the circle (x- 1)² + (y + 3)² =64 is

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8

2√2

4

64

Sin (2π -θ) =______.

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Cosθ

-Sinθ

-cosθ

Two natural numbers whose sum is 25 and difference is 5, are

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25, 20

20, 10

20, 5

15, 10

Which is not included in the domain of Cos^-1 x

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0

1

-1

2

If A and B are matrices such that AB=BA=I then

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A and B are multiplicative inverse of each other

A and B are additive inverses of each other

A and B are singular matrices

A and B are equal

The two consecutive positive integers whose product is 56 are

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7, 8

14, 4

28, 2

56, 1

Cos 315° =

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0.707

0.5

1

0

If k₁ : k₂ = 1:1 then the point P dividing the line is

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Mid point

Extreme left point

Extreme Right point

Plies out side k₁ and k₂

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NAT I General Science Mathematics MCQs With Answers

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