Embed Size (px)
Citation preview
What does i2 equal?
1 -1 i
Don’t
know
0% 0%0%0%
1. 1
2. -1
3. i
4. Don’t know
z and w are equal when z=3+4i and w=6+8i
Tru
e
Fal
se
Don’t
know
0% 0%0%
1. True
2. False
3. Don’t know
If z=a+ib then what is b known as?
1 2 3 4
0% 0%0%0%
1. Real part of z
2. Constant part of z
3. Imaginary part of z
4. None of these
If z=4+7i, find Re(z), Im(z) and |z|.
1 2 3 4 5
0% 0% 0%0%0%
65,7,41.
11,7,42.
65,4,73.
65,4,74.
Don’t know5.
If z=-3+4i and w=2-6i, find 2z+w.
-4+1
4i
8+14
i
-4+2
i
8+2i
0% 0%0%0%
1. -4+14i
2. 8+14i
3. -4+2i
4. 8+2i
If z=-3+4i and w=2-6i, find zw.
-30+
26i
-6-2
4i
18+
26i
None
of the
se
0% 0%0%0%
1. -30+26i
2. -6-24i
3. 18+26i
4. None of these
If z=6+2i and w=-2+4i, find .
1 2 3 4
0% 0%0%0%
w
z
i3
7
3
1
1.
i2
13
2.
i5
7
5
1
3.
None of the above4.
If z=-3+4i and w=2-6i, find |z-w|.
1 2 3 4
0% 0%0%0%
i25 1.
i1052.
293.
554.
If z=-3+2i, find .
13 5
13-
12i
5+12
i
0% 0%0%0%
zz
1. 13
2. 5
3. 13-12i
4. 5+12i
Find the roots of the equation .
1 2 3 4
0% 0%0%0%
0123 2 xx
23
1
1.
i23
1
2.
i3
2
3
1
3.
i3
4
3
1
4.
Which of the following graphs represents z=3-2i?
0% 0%0%0%
1.
2.
3.
4.
If z=a+ib in Cartesian form, what does z equal in polar form?
1 2 3 4
0% 0%0%0%
)cos(sin ir 1.
)sin(cos ir 2.
)cos(sin ir 3.
)sin(cos ir 4.
Find the polar coordinate form of z=4+2i.
1 2 3 4
0% 0%0%0%
)6.26sin6.26(cos52 iz1.
)4.63sin4.63(cos52 iz2.
)6.26sin6.26(cos6 iz3.
)4.63sin4.63(cos6 iz4.
Which of the following are true ifand
1 2 3 4
0% 0%0%0%
)sin(cos irz ?)sin(cos itw
))sin()(cos( irtzw 1.
))sin()(cos( it
r
w
z2.
Both of the above3.
Neither of the above4.
Find a complex number expression in Cartesian form for .
-2i
2+i -i 2
i
0% 0%0%0%
22i
e
1. -2i
2. 2+i
3. -i
4. 2i
Which of the following are correct?
1 2 3 4
0% 0%0%0%
2cos
ii ee
1.
2sin
ii ee
2.
2cosh
xx eex
3.
2sinh
xx eex
4.
Which of the following is known as De Moivre’s theorem if p is a
rational number?
1 2 3 4
0% 0%0%0%
pipip sincossincos 1.
pipip sincossincos 2.
pipi p sincossincos 3.
pii p sincossincos 4.
Find all the values of 271/3.
1 2 3 4
0% 0%0%0%
i2
33
2
3,3
1.
i2
33
2
3,3
2.
i2
3
2
1,0
3.
i2
3
2
1,27
4.
![zeros diagram for the following equation. (Hint: Apply linearity and time delay properties to get the system function H(z) which is the equal to Y(z)/X(z) ). y[n] - 3 y[n-l] + 2y[n-2]](https://img.pdfslide.us/doc/110x75/5e58b47469de7e75d66a296f/zeros-diagram-for-the-following-equation-hint-apply-linearity-and-time-delay.jpg)
![MathdZ Space FZigbt Center, AZabdmd - NASA with numerical value approximately equal to 0.4 and $(z/L0) is a universal function of z/Lo [3]. &'(z,z2,t) is a rapidly varying random function](https://img.pdfslide.us/doc/110x75/5b379a3e7f8b9a5a178c7c88/mathdz-space-fzigbt-center-azabdmd-nasa-with-numerical-value-approximately-equal.jpg)
