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Help for number 5 please

Help for number 5 please
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5 votes
Help for number 5 please

Help for number 5 please-example-1
User MrFrenzoid
by
7.3k points

1 Answer

3 votes
6i^4 = 6*1 = 6
6i^3 = 6*(-i) = -6i
-2i^2 = (-2)*(-1) = 2
sqrt(-49) = 7i

So, we have: 6 - 6i + 2 + 7i = 8 + i
The answer is D

User Nonybrighto
by
8.4k points
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