Question # 1

How many 3 digit numbers can be formed by using each one of the digit 2, 3, 5, 7, 9 only once?

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15

24

60

120

In the expansion of (a + x)ⁿthe sum of exponents of a and x in each term of the expansion is

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n + 1

n - 1

n

2n

A circle which touches one side of a triangle externally and the other two sides produced is called ______

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In-circle

Circum cirle

Escribed circle

None of these

If the angle between two vectors with magnitude 6 and 2 is 60° when their scalar product is

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12

6

3

0

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sin h x

cos h x

tan h x

cot h x

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For a square matrix A, if A = At, then A is called

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Matrix

Transpose

Symmetric

Non-symmetric

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(x, y)

(kx, y)

(x, ky)

(kx, ky)

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