Question # 1

Find a if 1 is a root of the equation x²+ ax + 2 = 0

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3

-3

2

0

Roots of the equation x²+ 2x + 3 = 0 are

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Real and equal

Real and distinct

Complex

None of these

If P, Q, R be the A.M., G.M., H.M. respectively between any two rational numbers a and b, then P - Q is

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Every subset of a finite set is

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Disjoint

Null

Finite

Infinite

For two events A and B if P(A) = P (A/B) = 1/4 and P(B/A) = 1/2, then

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A is sub-event of B

A and B are mutually exclusive

A and B are independent and P(A/B) = 3/4

None of these

sin 540° =

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0

1

2

3

√23 is

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A rational number

A irrational number

An even integer

A factor of 36

The real number system contains.

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Positive Numbers

Negative numbers

Zero

(option a, b and c)

If the trace of matrix A is 5, then the trace of the matrix 3A is

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3/5

5/3

8

15

sin5θ+sin3θ = _______;

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2sin 4θ cosθ

2cos 4θ sinθ

2cos 4θ cosθ

-2sin 4θ sinθ

The set {Z\{0}} is group w.r.t

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Addition

Multiplication

Division

Subtraction

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Mathematics General Science Test Medium Mode MCQs With Answers

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