Question

What is the square root of -80?
Options:
-4√5
-4√ 5i
4√ 5i
4√ 5

Answer 1

Hint: \(\sqrt{-1} = i\)

Answer 2

learnt new stuff.. :)

Answer 3

Think of \[\sqrt{80}=\sqrt{-1*80}=\sqrt{-1}*\sqrt{80}\]

Answer 4

Then use @TheSmartOne's note to solve.

Answer 5

🔴҈҈҈҈̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚҉̚