Question # 1

The point (-5, 3) is the center of a circle and P(7, -2) lies on the circle. The radius of the circle is

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2

13

7

8

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-3/4

1/16

1/4

If A and B are matrices of same order than (,A + B)(A + B) =

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A²+ B²

A²+ B²+ 2AB

A + B

A²+ B²+ AB + BA

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None of these

The value of x, and y, when (x + iy)²= 5 + 4i

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X = 2, y = -1

X = -2, y = 1

X = 2, y = -1

X = 2, y = 2

Which of the following is the subset of all sets?

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{1, 2,3}

{0}

The complement of set A relative to universal set U is the set

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A - U

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If 0 < n < 1, n is a rational number, the number of terms in the expansion of (1 + X)ⁿare

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n + 1

2n

Infinitely many

2n²

Which is in the solution set of 4x - 3y < 2

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(3, 0)

(4, 1)

(1, 3)

None

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15

15 i

-15 i

-15

The multiplicative inverse of -1 in the set {1-, 1} is

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1

-1

+1

0

The value of the polynomial 3x³+ 4x²- 5x + 4 at x = -1 is

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12

1

10

-10

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In the expansion of (a + b)ⁿin every term the sum of the exponents of a and b is

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n

n + 1

2n - 1

2n + 1

If A and B are matrices such that AB=BA=I then

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A and B are multiplicative inverse of each other

A and B are additive inverses of each other

. A and B are singular matrices

A and B are equal

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