ECAT Pre General Science Mathematics Online Test

• 3 A
• 2 B
• 8 C
• 0 D

Which of the vectors have opposite direction?

• 
  A
• 
  B
• 
  C
• 
  D

The point on y² = 4ax nearest to the focus has its abciassae equal to

• -a A
• a B
• a/2 C
• 0 D

The term involving x4 the expansion (3-2x)7 is

• 217 x4 A
• 15120x4 B
• 313x4 C
• -25x4 D

The approximate percentage increase in the volume of a cube if the length of its each edge changes from 5 to 5.02 is

• 1.2% A
• 1.5% B
• 0.16% C
• 100.16% D

The two parts into which 57 should be divided so that their product is 782 are

• 43,14 A
• 34,23 B
• 33,24 C
• 44,13 D

The point _________ is in the solution of the inequality 2x + 3y < 5

• (1,1) A
• (2,2) B
• (0,1) C
• (0,2) D

Domain of cos x is ______

• 
  A
• 
  B
• 
  C
• 
  D

The common point to four standard parabolas

• Focus A
• Centre B
• Vertex C
• P(x,y) D

sec h x = ________

• 
  A
• 
  B
• 
  C
• 
  D

The solution set of the equation 1 + Cos x = 0 is __________

• 
  A
• 
  B
• 
  C
• none of these D

What is the period of tan 4/3 x =?

• π/4 A
• 4π/3 B
• 7π/4 C
• 3π/4 D

• 
  A
• 
  B
• 
  C
• 
  D

The unit vector along z-axis is

• 
  A
• 
  B
• 
  C
• none of these D

One second is denoted by

• 1⁰ A
• 1' B
• 1" C
• 1 rad D

• 
  A
• 
  B
• 
  C
• none of these D

• A^- A
• A^t B
• -A C
• A D

If a set S contains "n" elements then P (S) has ...... number of elements

• 2ⁿ A
• 2²ⁿ B
• 2 . n C
• n² D

A fraction in which the degree of the numerator is less the degree of the denominator is called

• Polynomial A
• Proper fraction B
• Rational fraction C
• None D

• 
  A
• 
  B
• 
  C
• 
  D

We also the system of non-homogeneous linear equations by

• a and b A
• b and c B
• c and a C
• a, b and c D

If E = { } , then P(E)

• ∅ A
• { } B
• {(2),(4),(6)....} C
• (∅) D

QUQ, =

• N A
• R B
• W C
• Z D

Matrix multiplication is

• Commutative A
• Not commutative B
• Not associative C
• Not distributive D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

If y = 2x , then

• y1 -ln2y = 0 A
• y2-(ln2)2 y = 0 B
• y2-(ln2)y1 = 0 C
• All are correct D

• 
  A
• 
  B
• 
  C
• 
  D

• Scalar matrix A
• Identity matrix B
• Null matrix C
• Symmetric matrix D

Φ set is the _______ of all sets

• Subset A
• Union B
• Universal C
• Intersection D