#### Answer

$ 6i$

#### Work Step by Step

$6\sqrt {-1} = 6i$
Because $\sqrt {-1} = i$

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$ 6i$

$6\sqrt {-1} = 6i$
Because $\sqrt {-1} = i$

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