Question # 1

n! stands for:

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product of first natural numbers

sum of n natural numbers

product of n integers

none of these

Solution set of the equation x² - 3x + 2 = 0 is

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{-1, 2}

{1, -2}

{-1, -2}

{1, 2}

The ordered pairs (2, 5) and (5, 2) are:

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not equal

equal

disjoint

empty

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B

A

none of these

If the sum of the roots of the equation kx² - 2x + 2k = 0 is equal to their product, then the value of k is:

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1

2

3

4

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Truth table containing all the values true is called:

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absurdity

conjunction

tautology

none

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1

-5

-1

none

sin (α + ß) =

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What is the common difference of the sequence 11, 5, -1, ......... ?

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6

-6

none of the foregoing numbers

If 2s = a + b + c, where a, b, c are the sides of a triangle ABC, then area of triangle ABC is given by:

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If set A = {1, 2, 3} and B = {1, 2, 3} then sets A and B are:

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not equal

equal

disjoint

overlapping

Which one is not a quadrant angle ?

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0°

90°

280°

270°

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20

If AB = BA = I, then A and B are:

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equal to each other

multiplicative inverse of each other

additive inverse of each other

both singular

The multiplicative identity of real numbers is:

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0

1

2

-1

3^2x - 3^x - 6 = 0 is:

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reciprocal equation

exponentialequation

radicalequation

none of these

If tan Θ > 0 and sin Θ < 0 then terminal arm of the angle lies in quadrant:

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I

II

III

IV

Sum of all three cube roots of unity is:

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1

-1

0

3

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If A = [aij] and B = [bij] are two matrices of same order r × s, then order of A - B is:

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r - s

r × s

r + s

none of these

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11th Class ICS Mathematics Test Online MCQs With Answers

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