Question

Evaluate the following;
√(-9)*(-4)
Chapter: Complex numbers
Class XI​

Answer 1

Answer:

6

Step-by-step explanation:

√(-9)×(-4)

=√(36)

=6

Answer 2

Answer:

$\sqrt{ - 9} = 3i \\ \\ 3i \times ( - 4) = - 12i$

So the answer is -12i.