NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

• 
  A
• 
  B
• 
  C
• 
  D

• 1 A
• 2 B
• 3 C
• 4 D

Cos 315°=

• 0.707 A
• 0.5 B
• 1 C
• 0 D

If any two rows (or any two columns) of a square matrix are inter changed, the determinant of the resultant matrix is

• Same as the original determinant A
• Additive inverse of the original determinant
  B
• Both A and B C
• Adj of the original matrix D

• 
  A
• 
  B
• 
  C
• None of these 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

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

• 
  A
• 
  B
• 
  C
• None D

• 
  A
• 
  B
• 
  C
• 
  D

• 30° A
• 45° B
• 60° C
• 90° D

A relation in which the equality is true only for some values of the unknown variable is called

• An identity A
• An equation B
• A polynomial C
• Inverse function D

The conic is a parabola if

• e < 1 A
• e > 1 B
• e = 1 C
• e = 0 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

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

• Free vector A
• Null vector B
• Unit vector C
• None of these D