Question # 1

In a triangle ABC, (s - a)(s - b) = s(s - c), then the angle Γ =

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r r₁ r₂ r₃ =

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abc

The direction of an angle Θ is determined by its:

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value

magnitude

ratio

sign

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right angled

equilateral

isosceles

obtuse angled

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none of these

tan (α+ß) =

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5

-5

-4

4

For a square matrix A, |A| equals:

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A^t

|A^t|

-|A^t|

-A^t

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In a triangle ABC b = √3, c = 1, α = 30° then a = :

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2

1

3

-1

Arithmetic series is only possible if:

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|d| = 1

|d| < 1

|d| > 1

none

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2

-2

5

-5

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

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

Period of a trigonometric function is:

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any real number

any negative real number

any integer

a least positive number

Sum of all three cube roots of unity is:

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1

-1

0

3

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25

20

40

2a + 2b + 2c

The value of ⁵C₂ is:

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1

10

20

30

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2

4

6

8

A dice is thrown. The probability to get an even number is:

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1

none of these

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Mathematics FA Part 1 Online Test MCQs With Answers

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