NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

Which is an explicit function

• 
  A
• 
  B
• 
  C
• All D

• 
  A
• 
  B
• 
  C
• 
  D

If 1 + Cos x = 0, then x =

• 
  A
• 
  B
• 
  C
• 
  D

Complex roots of real quadratic equation occur in

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

The set of the first elements of the ordered pairs forming a relation is called its

• Function on B A
• Range B
• Domain C
• A into B D

The multiplicative inverse of x such that x = 0 is

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

• 2 A
• 1 B
• 0 C
• 
  D

What is the period of Cot x?

• 
  A
• 
  B
• 
  C
• 
  D

The point (-5, 3) is the center of a circle and P(7, -2) lies on the circle. The radius of the circle is

• 2 A
• 13 B
• 7 C
• 8 D

The direction cosines of y-axis are

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

The equation of the normal to the circle x²+ y²= 25 at(4, 3) is

• 3x - 4y = 0 A
• 3x - 4y = 5 B
• 4x + 3y = 5 C
• 4x + 3y = 25 D

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

If 0 < n < 1, n is a rational number, the number of terms in the expansion of (1 + X)ⁿare

• n + 1 A
• 2n B
• Infinitely many C
• 2n² D

• 
  A
• 
  B
• 
  C
• 
  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