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OpenStudy (pottersheep):
Simplify i^17 + i^19 please
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OpenStudy (pottersheep):
I got -i...but my answer sheet says -2i!
OpenStudy (anonymous):
i^1+i^3. i+-i is 0, so I'm not sure whether or not your answer sheet is right.
OpenStudy (pottersheep):
oo i got 0 too my bad
OpenStudy (pottersheep):
thanks!!
myininaya (myininaya):
\[i^{4 \cdot 4+1}+i^{4 \cdot 4+3}=i^1+i^3=i+(-i)=0\]
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