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PCTB 1st Year Mathematics — MCQs, Short & Long Questions · Studive
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PCTB
1st Year
Mathematics
Chapter 1 · Complex Numbers
Exercise 1.1
Multiple choice
15
Short question
34
Long question
2
15 questions
Both
English
اردو
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1
The simplification of
is:
a
b
-1
c
d
1
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2
The simplification of
is:
a
-1
b
1
c
d
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3
Which of the following is a purely imaginary number?
a
b
2
c
d
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4
If
, then
=?
a
b
c
d
None of these
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5
If
, then
=?
a
a
2
- b
2
b
a
2
+ b
2
c
ab
d
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6
The value of
is:
a
Real part of z
b
Imaginary part of z
c
Conjugate of z
d
Modulus of z
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7
=?
a
b
c
1
d
0
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8
The conjugate of
is:
a
b
c
d
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9
The multiplicative inverse of
is:
a
b
c
d
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10
Imaginary part of
is:
a
b
c
d
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11
Which of the following is equivalent to a real number?
a
b
c
d
All of these
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12
Which number is not a complex number?
a
b
0
c
d
None of these
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13
If
, then z
2
=?
a
b
c
d
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14
Which of the following identities is true?
a
b
c
d
All of the above
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15
Let
, what is the congruent of z?
a
b
c
d
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Next topic
Exercise 1.1 with Example
is: is:
is:
is:
, then 
=?
, then 
=?
is:
=?
is:
is:
is:
, then z2=?
, what is the congruent of z?
