ECAT Pre General Science MCQ Test With Answer for Mathematics Chapter 1

• real number A
• complex number B
• rational number C
• irrational number D

• 
  A
• 
  B
• 
  C
• 
  D

• Principle of equality of fractions A
• Rule for product of fraction B
• Rule for quotient of fraction C
• Golden rule of fractions D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

O is ______

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

(a, b) + (-a, -b) =

• (0,0) A
• (a, b) B
• (-a, -b) C
• (1, 1) D

• 
  A
• 
  B
• 
  C
• 
  D

∀ z ∈ C, multipliucative is

• (1,1) A
• (1,0) B
• (0,1) C
• None of these D

• Additive property of inequality A
• Commutative property B
• Additive inverse C
• Additive identity D

• Trichotomy property A
• Additive property of inequality B
• Transitive property C
• Multiplicative property D

• Rational A
• Irrational B
• Natural C
• Odd D

What is the conjugate of -6 -i?

• -6 +i A
• 6+i B
• -6 -i C
• 6 -i D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• 
  D

3.5+5.4=5.4+3.5 =8.9 this property of addition is called

• additive identity A
• assoclative property B
• commulative property C
• closure property D

• 
  A
• 
  B
• 
  C
• 
  D

• N A
• r B
• 2r C
• π D

0 (zero) is

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

The√ is used for the

• Positive square root A
• Negative square root B
• +ve and -ve square root C
• Whole number D

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

If z₁= 2 + 6i and z₂= 3 + 7i, then which expression defines the product of z₁and z₂?

• 36 + (-32)i A
• -36 + 32i B
• 6 + (-11)1 C
• 0, +(-12)i D

In R, the additive identity is

• 0 A
• 1 B
• -1 C
• None D

The multiplicative inverse of -3i is

• 3i A
• -3i B
• -1/3i C
• 1/3 i D

The conjugate of √5 i is

• √5 A
• -√5 i B
• i C
• 5i D

• A prime number A
• An integer B
• A whole number C
• An irrational number D

• -3 -2i A
• 3 +2i B
• 1 + 2i C
• 1 - 2i D

14 is not a

• Prime number A
• Whole number B
• Even number C
• Real number D

If Z₁= 1 + i, Z₂= 2+3i, then |Z₁- Z₂| = ?

• 
  A
• 
  B
• 
  C
• 
  D

√11 is

• an irrational number A
• Rational number B
• odd number C
• Negative number D