![\bf \stackrel{a}{2}\qquad \stackrel{b}{-2}i~~ \begin{cases} r=&\sqrt{a^2+b^2}\\ &\sqrt{2^2+(-2)^2}\\ &\sqrt{2^2(1+1)}\\ &2\sqrt{2}\\ \theta =&tan^{-1}\left( \frac{b}{a} \right)\\ &tan^{-1}\left( \frac{-2}{2} \right)\\ &tan^{-1}(-1)\\ &\frac{3\pi }{4}~~,~~\frac{7\pi }{4}\\ &\frac{7\pi }{4} \end{cases}~\hfill \implies ~\hfill \begin{array}{llll} r[\cos(\theta )+i\sin(\theta )]\\\\ 2\sqrt{2}\left[ \cos\left( \frac{7\pi }{4} \right)+i\sin\left( \frac{7\pi }{4} \right) \right] \end{array}](/tpl/images/0350/3807/ddeb5.png)
Express the complex number in trigonometric form. 2 - 2i
...
Mathematics, 29.10.2019 02:31 sayedabdullah
Express the complex number in trigonometric form. 2 - 2i
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 23:00
Abox holds 500 paperclips. after a week on the teacher's desk 239 paperclips remained. how many paperclips were used?
Answers: 1
Mathematics, 22.06.2019 00:50
There are 8 movies that you would like to see currently showing in theatres. in how many different ways can you choose a movie to see this saturday and one to see this sunday?
Answers: 1
Mathematics, 22.06.2019 04:10
Find the tenth term in the following geometric sequence. 8, 4, 2, 1, . .a) 13b) 0.0078c) 0.0156d) 12.5
Answers: 2
Mathematics, 22.06.2019 06:00
Figure abcd is a trapezoid with point a (0, -4). what rule would rotate the figure 270° clockwise, and what coordinate would be the output for point a'?
Answers: 1
You know the right answer?
Questions
Social Studies, 09.06.2021 05:50
Mathematics, 09.06.2021 05:50
History, 09.06.2021 05:50
Biology, 09.06.2021 05:50
Social Studies, 09.06.2021 06:00
Spanish, 09.06.2021 06:00
Biology, 09.06.2021 06:00
History, 09.06.2021 06:00
Mathematics, 09.06.2021 06:00
