NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

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  A
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  B
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  D

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

• A and B are multiplicative inverse of each other
  A
• A and B are additive inverses of each other
  B
• . A and B are singular matrices C
• A and B are equal D

If A and B are two events, then P(AUB) = ? (when A and B are disjoint)

• P(A) - P(B) A
• P(A) x P(B) B
• P(A)+P(B) C
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  D

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  A
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  B
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  C
• None D

The constant distance of all points of the cirlce from its centre is called the

• Radius of the circle A
• Secant of the circle B
• Chord of the circle C
• Diameter of the circle D

Multiplicative inverse of "1" is

• 0 A
• + 1 B
• 1 C
• {0, 1} D

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  A
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  B
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  C
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  D

If x < y, 2x = A, and 2y =B, then

• A = B A
• A < B B
• A < x C
• B < y D

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  A
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  B
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  C
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  D

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  B
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  D

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

• n A
• n + 1 B
• 2n - 1 C
• 2n + 1 D

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  B
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  C
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  D

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  B
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  C
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  D

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  B
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  C
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  D

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  D