jordanbutts0309 jordanbutts0309

11-07-2019
Mathematics

contestada

If i^2 = −1 and a = (i + 7), which is the result of squaring a?

Respuesta :

freckledspots freckledspots

11-07-2019

Answer:

48+14i

Step-by-step explanation:

So squaring (i+7) looks like this

(i+7)^2

(i+7)(i+7)

Use foil.

First: i(i)=i^2=-1

Outer: i(7)=7i

Inner: 7(i)=7i

Last: 7(7)=49

____________Add the terms.

48+14i

Answer Link

Otras preguntas

Which of the following is a function? a. picture 1 b. all correct c. picture 2 d. (6,3), (9,3), (-14,3)

The question ""what if everyone did that?"" does not provide an acceptable ethical standard because:_____.

Simplify: -2/5 + 4/3

In ray rist’s observation study of a kindergarten class, what was the basis for assigning students to the fast-learner, slow-learner, or average-learner tables?

A company's management lacks information or understanding of customers. This is a gap between customers’ real expectations and managers’ perceptions of those ex

Find all points on the circle x^2+y^2=100 where the slope is 3/4

A mass extinction is technically defined as an event were at least ____% of all genera (families of organisms) goes extinct.

Graph the numbers that are solutions to both inequalities. p + 6 ≥ 11 and 3p < 18 I’ve already managed to figure out that p = 5, (I think) but how and where

Police discretion in deciding whether to arrest suspected juvenile offenders depends on factors such as?

4. The table below shows the relationship between the time a baseball player spent practicing batting and the number of hits made during the baseball season. Id