Question # 1

If ⁿP₂ = 30 then n = :

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5

6

2

3

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The multiplicative identity of real numbers is:

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0

1

2

-1

If two rows (or two columns) in a square matrix are identical (i.e. corresponding elements are equal), the value of the determinant is:

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0

1

-1

±1

If the initial side of an angle is the positive x-axis and the vertex is at the origin, the angle is said to be in the _____________:

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initial position

finalposition

normalposition

standardposition

Probability of a certain event is:

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0

1

>1

∞

Division of a natural number by another natural number gives:

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always a natural number

always an integer

always a rationalnumber

always an irrational number

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x-axis

y-axis

y = x

y = -x

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A set having no element is called:

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null set

subset

singleton

superset

cos⁴Θ - sin⁴Θ =

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sin 2Θ

cos 2Θ

tan 2Θ

sec 2Θ

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Additive property

Multiplicativeproperty

Reflexiveproperty

Transitive property

If A = {1, 2, 7, 9}, B = {1, 4, 7, 11}:

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disjoints sets

equal sets

overlapping sets

complementary sets

What is the general term of the sequence 2, 4, 6, 8, ........... ?

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2n

n + 1

2n²

none of these

In any triangle ABC, law of tangents is:

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all of these

If a_n = (n + 1) a_n-1, a₁ = 1, second term of the sequence is:

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3

1

2

4

Sum of all three cube roots of unity is:

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1

-1

0

3

tan(π + cot^-1x ) =

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scalar matrix

diagonalmatrix

triangularmatrix

none of these

The identity element with respect to addition is:

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0

1

-1

0 and 1

The set of all rational numbers between 2, 3 is:

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an empty set

an infinite set

a finite set

a power set

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11th Class ICS Mathematics Test Online MCQs With Answers

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