Question

please provide step by step solution

Answer 1

Answer:

-4.

Step-by-step explanation:

    $\sqrt{-5}\sqrt{-\frac{16}{5} }$

=    $i *i*\sqrt{5} *\sqrt{16}*\sqrt{\frac{1}{5} }$

=    $i^{2}*\sqrt{16}(\sqrt{5}*\frac{1}{\sqrt{5} })$

=    (-1)* 4

=    -4.

Answer 2

Answer = -4

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