Question # 1

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r₁

r₂

r₃

r

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scalar matrix

diagonalmatrix

lower triangularmatrix

upper triangularmatrix

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none of these

Which one is exponential equation:

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ax² + bx + c = 0

ax + b = 0

2^x = 16

If the roots of x² - bx + c = 0 are two consecutive integers, then: b² - 4ac =

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0

1

-1

2

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closure property w.r.t multiplication

commutativeproperty w.r.t multiplication

associativeproperty w.r.t multiplication

trichotomy property

Two matrices X and Y are equal if and only if:

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X and Y are of same order

Their corresponding elements are equal

Both a and b

None of these

A set containing finite number of elements is called:

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nullset

superset

finiteset

infiniteset

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0

-1

>1

none

To convert any angle in radians into degrees, we multiply the measure by:

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In how many ways two places can be filled by n objects:

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n(n-1)

2!

n(n+1)

None

The middle terms of (x+y)²³ are:

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T₁₀,T₁₁

T₁₁,T₁₂

T₁₂,T₁₃

none of these

Sum of integral multiples of there between 4 and 22 is:

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81

75

211

none

If A is a matrix of order m × n, then the number of elements in each row of A is:

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m

n

m + n

m - n

A sequence of numbers whose reciprocal form an arithmetic sequence, is known as:

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arithmetic sequence

geometricsequence

harmonicsequence

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}

sin5Θ + sin3Θ is equal to:

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2cos 2Θ sin Θ

-2 cos 4Θ sin Θ

-2 sin 4Θ cos Θ

2 sin 4Θ cos Θ

If A and B are two matrices, then:

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A B = O

AB = BA

AB = I

AB may not be defined

Sum of all odd numbers between 100 and 200 is:

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6200

6500

3750

7500

7th term of G.P 3, 6, 12 ..... is:

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512

192

48

96

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11th Class ICS Mathematics Test Online MCQs With Answers

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