Question # 1

If A = [a_ij] is (m x n) matrix, then transpose of A is of the order

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m x m

m x n

n x n

n x m

A bag contains 7 whit, 5 black and 4 rd balls. If two balls are drawn at random from the bag, the probability that they are not of the same color is

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73 / 120

83 / 120

67 / 120

43 / 120

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

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π/3

π/4

3π/2

π/6

The product of the four fourth roots of unity is

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0

1

-1

None of these

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How many arrangements of the letters of the word MATHEMATICS can be made

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The multiplicative inverse of x such that x = 0 is

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-x

does not exist

1/x

0

The coefficient of the second term of (a+b)⁴ is

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1

9

3

5

x³+ 2x²- 3x + 5 is ______

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An equation

A polynomial

Proper rational fractions

Improper rational fractions

Number of conics is

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1

3

2

4

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