NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

The value of x, and y, when (x + iy)²= 5 + 4i

• X = 2, y = -1 A
• X = -2, y = 1 B
• X = 2, y = -1 C
• X = 2, y = 2 D

If n is a positive integer, then 3+6+9+ -----------------+3n =

• 
  A
• 
  B
• 
  C
• 
  D

If 4 - x > 5, then

• x > 1 A
• x > -1 B
• x < 1 C
• x < -1 D

The perpendicular bisector of any chord of a circle

• Passes through the centre of the cirle A
• Does not pass through the centre of the circle B
• May or may not pass through the centre of the cirlce C
• None of these D

Ifα andβ be irrational roots of a quadratic equation, then

• 
  A
• 
  B
• 
  C
• 
  D

The circle (x-2)²+ (y+3)²= 4 is not concentric with the circle

• (x-2)²+ (y+3)²= 9 A
• (x+2)²+ (y-3)²= 4 B
• (x-2)²+ (y+3)²= 8 C
• (x-2)²+ (y+3)²= 5 D

The range of inequality x + 2 > 4 is

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

• 
  A
• 
  B
• 
  C
• 
  D

The nth term of of A.P:1,5,9,15,....................... is given by

• 4n - 3 A
• 4n + 1 B
• 3n - 4 C
• 4n + 3 D

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

• 
  A
• 
  B
• 
  C
• A - U D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• None D

• n = 3 only A
• n > 5 B
• n > 3 C
• n < 5 D

What is the period of Cot x?

• 
  A
• 
  B
• 
  C
• 
  D

3/2 is

• An irrational number A
• Whole number B
• A positive integer C
• A rational number D