First Year Mathematics Chapter 1 Online MCQ Test for 1st Year Mathematics Chapter 1 (Number Systems)

• rationalnumber A
• irrationalnumber B
• naturalnumber C
• wholenumber D

Zero is:

• a natural number A
• a whole number B
• a positive integer C
• a negativeinteger D

• x = 0 A
• y = 0 B
• x = 0 and y = 0 C
• x = 0 or y = 0 D

• cancellation property w.r.t multiplication A
• cancellationproperty w.r.t addition B
• multiplicativeproperty C
• additiveproperty D

Conjugate of a- i b is:

• b + ia A
• -a + ib B
• -a - ib C
• a + ib D

The ordered pairs (2, 5) and (5, 2) are:

• not equal A
• equal B
• disjoint C
• empty D

The multiplicative identity of real numbers is:

• 0 A
• 1 B
• 2 C
• -1 D

• integer A
• rationalnumber B
• irrationalnumber C
• naturalnumber D

• 
  A
• archimedean property B
• transitive property C
• multiplicative property D

• rational number A
• irrational number B
• natural number C
• whole number D

• a + c = b + d A
• a + b = c + d B
• a - b = c - d C
• None of these D

Conjugate of complex number (-a, -b) is:

• (-a, b) A
• (-a, -b) B
• (a, -b) C
• none of these D

Product of a complex number and its conjugate is:

• a real number A
• irrationalnumber B
• a complexnumber C
• either real number or complexnumber D

If z = x + i y = r (cos Θ + i sin Θ), then arg z is:

• tan Θ A
• cos²Θ + sin²Θ B
• r C
• Θ D

π is defined as:

• ration of diameter of a circle to its circumference A
• ration of the circumference of a circle to its diameter B
• ration of area of a circle to its circumference C
• ration of the circumference of a circle to its area D

• 
  A
• 
  B
• 
  C
• 
  D

The multiplicative invers of a non-zero real number a is:

• 0 A
• -a B
• a C
• 
  D

Conjugate of a + i b is:

• -a + ib A
• a + ib B
• -a - ib C
• a - ib D

• 
  A
• x = 0, y = 0 B
• 
  C
• 
  D

Which of the following is correct:

• 2 + 7i > 10 + i A
• 1 + i > 1 - i B
• 4 + 3i > 1 + 3i C
• none of these D