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3 years ago

Help pleaseeeeeeeeee

Mathematics

2 answers:

brilliants [131]3 years ago

6 0

Answer:

Hello,

Answer D

Step-by-step explanation:

I suppose that i is the imaginary (i²=-1)

i^4=1

i^99=i^(4*24+3)=i^3

i^3-i^3=0

Answer D

Taya2010 [7]3 years ago

5 0

Answer: D) 0

======================================================

Explanation:

Take note of this pattern

i^0 = 1
i^1 = i
i^2 = -1
i^3 = -i
i^4 = 1

After this point, we repeat the cycle. The cycle is 4 units long. This means we can divide the exponent over 4 and look at the remainder

99/4 = 24 remainder 3

So i^99 = i^3

which means i^99 - i^3 = i^3 - i^3 = 0

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