NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

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Complex roots of real quadratic equation occur in

• Conjugate pair A
• ordered pair B
• reciprocal pair C
• quadratic function D

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  A
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  B
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  D

What is the domain of y = Cot^-1x?

• Set of irrational number only A
• Set of all real numbers B
• Set of intergers only C
• Set of complex numbers only D

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• 1 A
• 2 B
• 3 C
• 4 D

If the diagonal of a square has coordinates (1, 2) and (5,6) the length of a side is

• 3 A
• 4 B
• 1 C
• 5 D

The nth term in G.P 3,-6,12,....................... is

• 3(-2)^n-1 A
• 2(-2)ⁿ⁺¹ B
• 3(-2)ⁿ C
• 4(-2)^n-1 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 -1 < x < 0, which of the following statements must be true?

• x < x²< x³ A
• x < x³< x² B
• x²< x³< x C
• x²< x < x³ D

The sum of the interior angles for a 16 sided polygon is

• 4 pie A
• 14 pie B
• 8 pie C
• 2 pie D

a + x is

• A trinomial A
• A binomial B
• A moomial C
• An equation D

• Unit matrix A
• Diagonal matrix B
• Nilpotent matrix C
• Zero matrix D