Q

#### Pre-calculus 15 - Complex numbers 2.

(10 Questions)
1 viewed last edited 4 years ago
From these questions, you will know how to determine the conjugate of complex numbers
0
1
Multiplying a complex number by its complex conjugate will yield ------------
A
B
C
D
0
1
Every complex number (x+iy) has a complex conjugate (x-iy).
A
B
0
1
What is the complex conjugate of a+bi?
A
B
C
D
0
1
What is the complex conjugate of 5-7i?
A
B
C
D
0
1
how many complex conjugates does a single complex number have?
A
B
C
D
0
1
If the voltage in a circuit is (3+2i) amps and the current is (2-i) volts, what is the resistance? Resistance= \frac{voltage}{cutrrent}
A
B
C
D
0
1
In order to divide 5+4i by negative 2+7i, you must multiply both the numerator and denominator by __________. Answer it as a+bi.
0
1
In order to divide 5+ 3i by negative 3-5i, you must multiply both the numerator and denominator by ------------ Answer it as a+bi.
0
1
If the voltage in a circuit is 2+5i volts and the resistance is 1+3i ohms, what is the current? I=\frac{V}{R}
A
B
C
D
0
1
If the current in a circuit is 3+2i amps and the resistance is 4-3i ohms, what is the voltage? (voltage=R*I)
A
B
C
D by Krishna