A-level Mathematics/MEI/FP1/Complex Numbers/solutions to powers of j questions

1.

$j^{9}=(j^{5})(j^{4})=(j)(1)=j$

2.

$j^{22}=(j^{4})(j^{4})(j^{4})(j^{4})(j^{4})(j^{2})=(1)(1)(1)(1)(1)(j^{2})=j^{2}=-1$

Any questions?, FAQs will be posted here.

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