Question # 1

cos(tan^-1∞) =

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0

∞

1

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If a_n-1 = 2n - 3 then a_n+1 =

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2n - 1

2n + 1

2n + 3

none

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0

-1

>1

none

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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10π

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If each element of a 3 × 3 matrix A is multiplied by 3, then the determinant of the resulting matrix is:

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|A|³

27|A|

3|A|

9|A|

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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0

i

-i

1

If a_n-3 = 2n - 5 then a_n =

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2n-1

2n+1

2n+3

none

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn bears a number which is a multiple of 3 ?

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none of these

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rationalnumber

irrationalnumber

naturalnumber

wholenumber

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diagonal matrix

The objects in a set are called:

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elements

sub-sets

whole numbers

overlapping sets

If n(S) = 3 then n {P(S)} =

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2

8

16

4

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x = 0

y = 0

x = 0 and y = 0

x = 0 or y = 0

For a positive integer n:

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(n+1)! = (n+1)n!

(n+1)! = (n+1)(n-1)!

n! = n(n+1)!

none of these

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

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not equal

equal

disjoint

empty

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equal sets

null sets

overlapping sets

subsets

Sum of roots of ax² + bx + c = 0 is equal to product of roots only if:

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a+c=0

b+c=0

a+b=0

a+b+c=0

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Mathematics FA Part 1 Online Test MCQs With Answers

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