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Doss [256]
3 years ago
13

1/2 percent, round to three positions

Mathematics
1 answer:
Tamiku [17]3 years ago
8 0
I think the answer would be 0.005
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Let z= -5 sqrt 3/2 + 5/2i and w=1 + sqrt 3i
MrRissso [65]

a.

z=-\dfrac{5\sqrt3}2+\dfrac52i=5\left(-\dfrac{\sqrt3}2+\dfrac12i\right)=5e^{i5\pi/6}

w=1+\sqrt3\,i=2\left(\dfrac12+\dfrac{\sqrt3}2i\right)=2e^{i\pi/3}

b. Not exactly sure how DeMoivre's theorem is relevant, since it has to do with taking powers of complex numbers... At any rate, multiplying z and w is as simple as multiplying the moduli and adding the arguments:

zw=5\cdot2e^{i(5\pi/6+\pi/3)}=10e^{i7\pi/6}

c. Similar to (b), except now you divide the moduli and subtract the arguments:

\dfrac zw=\dfrac52e^{i(5\pi/6-\pi/3)}=\dfrac52e^{i\pi/2}

8 0
3 years ago
Làm ơn hãy giúp tôi <br> (a+b)²<br> (a-b)²
marysya [2.9K]

Answer:

(a + b) ^{2}  =  {a}^{2}  + 2ab +  {b}^{2}  \\ (a - b) ^{2}  =  {a {}^{2}  - 2ab +  {b}}^{2}

Step-by-step explanation:

hopethe answer helped you :)

8 0
2 years ago
Read 2 more answers
Five workers dig a trench 5 yards long in 5 hours. How many workers are needed to dig a 100 yards long in 100 hours?
Pavlova-9 [17]

I think it would require 100 workers since 1 worker digs up 1 yard.

Hope this helps.

7 0
3 years ago
Which of the following is the graph of y=3 sec [ 2(x-pi/2)] + 2
asambeis [7]

Answer:

A.) The first graph

Step-by-step explanation:

3 0
3 years ago
A piece of paper can be made into a cylinder in two ways : by joining the short sides together, or by joining the long sides tog
julia-pushkina [17]
They hold the same amount i think
3 0
3 years ago
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