NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

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

• 12 A
• 1 B
• 10 C
• -10 D

Multiplicative inverse of "1" is

• 0 A
• + 1 B
• 1 C
• {0, 1} D

If a statement S(n) is true for n = 1 and the truth of S(n) for n + K implies the truth of S(n) for S(n) = K + 1, then S(n) true for all

• All Real numbers A
• All integers B
• Positive integers C
• All complex numbers D

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

• 
  A
• 
  B
• 
  C
• A - U D

• 
  A
• 
  B
• 
  C
• None of these 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

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

Complex roots of real quadratic equation occur in

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

Which of the following is the subset of all sets?

• 
  A
• {1, 2,3} B
• 
  C
• {0} D

• 1 A
• 2 B
• 3 C
• 4 D

• A polynomial A
• An inequality B
• An identity C
• A linear function D

• 
  A
• 
  B
• 
  C
• 
  D

• 2 A
• 1 B
• 3 C
• 4 D

Which of the vectors have opposite direction?

• 
  A
• 
  B
• 
  C
• Both A and B D