Question # 1

The equation |x + 4| = x has solution

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x = -2

x = 2

x = -4

x = 4

n(n-1)(2n-1), for all natural numbers n, is divisible by

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12

6

2

18

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Identity matrix

Diagonal matrix

Null matrix

Hermitian matrix

The area enclosed between the graph y = x²-4x and the x- axis is:

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20/3

41/3

32/3

25/3

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30°

45°

60°

90°

If a = [1,4,3] and B= [2,-1,5] athen the mid point M of AB is:

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[1,1,1.5]

[2,2,1.5]

[1.5,1.5,4]

None of these

Which of the following is a scalar.

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force

frequency

weight

acceleration

What is the value of cos (cos-1 2) ?

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√2

1/2

undefine

0

If (1+x-2x³)⁶= 1+a₁x + a₂x²+ a₃x³+ ..... the the value of a₂+ a₄+ a₆+ .....+a₁₂will be

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32

31

64

1024

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