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NeTakaya
3 years ago
5

What is the principal square root of -4

Mathematics
1 answer:
devlian [24]3 years ago
6 0

Answer:

The principal square root of -4 is 2i.

Step-by-step explanation:

\sqrt{-4} = 2i

We have the following steps to get the answer:

Applying radical rule \sqrt{-a} =\sqrt{-1} \sqrt{a}

We get \sqrt{-4} =\sqrt{-1} \sqrt{4}

As per imaginary rule we know that \sqrt{-1}=i

= \sqrt{4} i

Now \sqrt{4} =2

Hence, the answer is 2i.

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Step-by-step explanation:


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4 years ago
Please answer this correctly
Alex Ar [27]

Answer:

Area of the figure = 254.5 cm²

Step-by-step explanation:

<u><em>Area of rectangle = Length × Width</em></u>

<u><em>Area of triangle = 1/2(base × Height)</em></u>

<em>Dividing the figure into parts for convenience</em>

So,

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What is the vertex of the graph of g(x)=|x-3|-3
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Step-by-step explanation:

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