Answer
$0+5i$
Work Step by Step
$\sqrt {-25}=\sqrt {-1} \times \sqrt {25} = i\times 5 = 5i$.
Since there are no real terms, we can write this expression in $a+bi$ form as $0+5i$.
Calculus: Early Transcendentals 8th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1285741552
ISBN 13:
978-1-28574-155-0
APPENDIX H - Complex Numbers - H Exercises - Page A 64: 13
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