Question # 1

G.M between -2i and 8i is:

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4 or -4

4i or -4i

2 or -2

none

In triangle ABC, if α = 90° then:

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none of these

(1 - sin²Θ) (1 + tan²Θ) =

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0

1

Θ

-1

If ⁿP₂ = 30 then n = :

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5

6

2

3

No. of arrangements of the letters of the word plane taking all letters at a time:

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5

1

none

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

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6

-6

none of the foregoing numbers

Probability of an impossible event is:

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0

1

-1

∞

The period of tan 2x is:

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In an A.P.a₃ = 12 and a₇ = 32 then d = :

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5

3

7

9

If 2s = a + b +c, then in any triangle ABC:

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none of these

Sum of all three cube roots of unity is:

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1

-1

0

3

If a statement P(n) is true for n = 1 and truth of P(n) for n = k implies the truth of P(n) for n = k + 1, then P(n) is true for all:

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integers n

real numbers n

positive real numbers n

positive integers n

The additive inverse of a matrix A is:

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A

A^-1

- A

A²

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25

20

40

2a + 2b + 2c

If A is a square matrix order 3 × 3 the |kA| equals:

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k |A|

k²|A|

k³ |A|

k⁴ |A|

Arithmetic series is only possible if:

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|d| = 1

|d| < 1

|d| > 1

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

No. of arrangements of the letters of the word PAKPATTAN can be made, taken all together ?

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15130

15120

1512

none of these

Rational numbers are:

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repeating decimals

terminatingdecimals

periodicdecimals

all of these

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Mathematics FA Part 1 Online Test MCQs With Answers

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