NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

If A and B are matrices of same order than (,A + B)(A + B) =

• A²+ B² A
• A²+ B²+ 2AB B
• A + B C
• A²+ B²+ AB + BA D

• A positive integer A
• A negative integer B
• A natural number C
• An irrational number D

The multiplicative inverse of -1 in the set {1-, 1} is

• 1 A
• -1 B
• +1 C
• 0 D

• 1 A
• 2 B
• 3 C
• 4 D

• (0, e) A
• (0, 1) B
• 
  C
• None D

If x < y, 2x = A, and 2y =B, then

• A = B A
• A < B B
• A < x C
• B < y D

Which is in the solution set of 4x - 3y < 2

• (3, 0) A
• (4, 1) B
• (1, 3) C
• None D

• 
  A
• 
  B
• 
  C
• None of these D

Every prime number is also

• Rational number A
• even number B
• Irrational number C
• multiple of two numbers D

• 
  A
• 
  B
• 
  C
• 
  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

• 
  A
• 
  B
• 
  C
• 
  D

What is the period of Cot x?

• 
  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

Which is not a half plane

• ax + by < c A
• ax + by > c B
• Both A and B C
• None D