NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

• 
  A
• 
  B
• 
  C
• 
  D

The values of n such that, in the binomial expansion of (1 - x)ⁿ, co-efficient of x², co-efficient of x²is 3, are

• -2, -3 A
• 2, -3 B
• -2, 3 C
• None of these 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

The multiplicative inverse of x such that x = 0 is

• -x A
• does not exist B
• 1/x C
• 0 D

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

• 12 A
• 1 B
• 10 C
• -10 D

• An equation A
• Linear equation B
• Rational fraction C
• Identity D

The range of inequality x + 2 > 4 is

• (-1, 2) A
• (-2, 2) B
• 
  C
• None D

A point of a solution region where two of its boundary lines intersect, is called

• Boundary A
• Inequality B
• Half Plane C
• Vertex D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  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
• 
  B
• 
  C
• 
  D

The direction cosines of y-axis are

• 1,0,0 A
• 0,1,0 B
• 0,0,1 C
• 1,1,1 D

• 1 A
• 2 B
• 3 C
• 4 D

• 0 A
• 1 B
• -1 C
• 2 D