Which expression represents the number 5i4+2i3+8i2+−4 rewritten in a+bi form?
2 answers:
Remember
i²=-1 so
i³=-i
i⁴=1
so
5i⁴+2i³+8i²-4
5(1)+2(-i)+8(-1)-4
5-2i-8-4
-7-2i is the form
Answer:
Thats not the answer. I need help with this answer too.
These are the answers we're supposed to choose from:
−3+2i
5+0i
5−2i
−3−4i
−3+0i
Which one is it?
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<span>(1/3) * 4 = 4/3 = 1 and 1/3 miles</span>
Answer:
The answer is R(2).
Step-by-step explanation:
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U minus them?or plus them?
