Question # 1

If α, ß are the roots of x² + kx + 12=0 such that α-ß = 1 then K = :

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0

±5

±7

±15

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p is false and q is true

both p and q are false

p is true and q is false

both p and q are true

Multiplicative inverse of -i is:

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i

-i

1

-1

A reference angle Θ is always:

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csc (2π - Θ), where Θ is a basic angle, will have terminal side in:

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quad. I

quad. II

quad. III

quad. IV

Probability of a certain event is:

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0

1

>1

∞

Number of ways of arranging 5 keys in a circular ring is:

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12

24

6

5

The period of 2 + cos 3x is:

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Solution set of the simultaneous equations : x + y = 1, x - y = 1 is:

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{(0,0)}

{(1,0)}

{(0,1)}

{(1,1)}

A declarative statement which is either true or false but not both is called:

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logic

proposition

induction

deduction

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Period of a trigonometric function is:

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any real number

any negative real number

any integer

a least positive number

Complex roots of real quadratic equation always occur in:

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conjugate pair

ordered pair

reciprocal pair

none of these

Irrational numbers are:

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terminating decimals

non-terminating decimals

non-terminating, repeating decimals

non-terminating, non repeating

The multiplicative invers of a non-zero real number a is:

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0

-a

a

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Distinct objects means:

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identical objects

not identical

similar

none of these

If any two rows of a square matrix are interchanged, the determinant of the resulting matrix:

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is zero

is multiplicative inverse of the determinant of the original matrix

is additive inverse of the determinant the original matrix

none of these

The objects in a set are called:

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elements

sub-sets

whole numbers

overlapping sets

cos (α-ß) =

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cos α cos ß + sin α sin ß

cos α cos ß - sin α sin ß

cos α cos ß + sin α cos ß

sin α cos ß - sin α sin ß

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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Mathematics FA Part 1 Online Test MCQs With Answers

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