What is (-i)^5 ? a. -i b. 1 c. -1 d. i

Work Shown:

(-i)^5 = (-1*i)^5

(-i)^5 = (-1)^5 * i^5

(-i)^5 = (-1)^5 * i^2*i^2*i

(-i)^5 = (-1)^5 * (-1)*(-1)*i

(-i)^5 = -1 * 1 * i

(-i)^5 = -i

A shortcut to quickly computing i^5 is to note the remainder of 5/4 is 1, so this means that i^5 = i^1 = i. Another example is i^25 would equal the same thing since 25/4 has a remainder of 1 as well.

Step-by-step explanation:

answer:   x*94 +688*6   = 267*100

94x+4128=26700    

94x=22572     /94

x=240.128

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