NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

Which is not a half plane

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

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

• 1 A
• -1 B
• +1 C
• 0 D

Two matrices A and B are conformable

for multiplication (AB) if and only if

• Both A,B have the same number of columns
  
  A
• Both A and B do not have the same order
  
  B
• Number of col A is same as number of rows of B
  
  C
• Number of rows of A is same as number of col of B
  
  D

The equation of the line with gradient 1 passing through the point (h, k) is

• Y = x + k - h A
• Y = k/h x + 1 B
• Y = x + h - k C
• Ky = hx - 1 D

• 
  A
• 
  B
• 
  C
• None 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

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

The magnitude of a vector can never be

• Zero A
• Negative B
• Positive C
• Absolute D

0 (Zero) is

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

• 
  A
• -3/4 B
• 1/16 C
• 1/4 D

If the sum of the roots of (a + 1)x²+ (2a + 3)x +(3a+4) = 0 is -1, then product of the roots is

• 1 A
• 2 B
• -2 C
• -1 D

• 
  A
• 
  B
• 
  C
• 
  D