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What is 4i^2

Guest Feb 15, 2017

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What is 4i^2

$\begin{array}{|rcll|} \hline && 4i^2 \quad &| \quad i^2 = -1 \\ &=& 4\cdot(-1) \\ &=& -4\\ \hline \end{array}$

heureka Feb 16, 2017

heureka · Answer 1 · 2017-02-16T06:03:29

What is 4i^2

$\begin{array}{|rcll|} \hline && 4i^2 \quad &| \quad i^2 = -1 \\ &=& 4\cdot(-1) \\ &=& -4\\ \hline \end{array}$