Answers: 1
![\bf \stackrel{\textit{let's recall that}}{i^2=-1\qquad \qquad i^4=1} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{3}{i^{23}}\implies \cfrac{3}{i^{20+2+1}}\implies \cfrac{3}{i^{20}i^2 i}\implies \cfrac{3}{i^{4\cdot 5}i^2 i}\implies \cfrac{3}{(i^4)^5 i^2 i}\implies \cfrac{3}{(1)^5(-1)i} \\\\\\ \cfrac{3}{-i}~\hspace{7em}\stackrel{\textit{and if we rationalize the denominator}}{\cfrac{3}{-i}\cdot \cfrac{i}{i}\implies \cfrac{3i}{-i^2}\implies \cfrac{3i}{-(-1)}}\implies 3i](/tpl/images/0047/8202/d4312.png)
Another question on Mathematics
Mathematics, 21.06.2019 15:00
1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.
Answers: 1
Mathematics, 21.06.2019 16:20
Which math sentence can be used to determine if the triangle is a right triangle?
Answers: 1
Mathematics, 21.06.2019 17:40
Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression
Answers: 2
Mathematics, 21.06.2019 20:30
The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?
Answers: 2
You know the right answer?
Ineed with simplifying this fraction!...
Questions
Chemistry, 19.09.2019 06:30
Mathematics, 19.09.2019 06:30
History, 19.09.2019 06:30
Mathematics, 19.09.2019 06:30
Chemistry, 19.09.2019 06:30
Health, 19.09.2019 06:30
Mathematics, 19.09.2019 06:30
