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Popular >

simplify sqrt(-2^2)

Solution

simplify

- 2^{2}

Solution

2 i

Solution steps

- 2^{2}

Apply radical rule:

- a = - 1 a

- 2^{2} = - 1 2^{2}

= - 1 2^{2}

Apply imaginary number rule:

- 1 = i

= i 2^{2}

Apply radical rule:

assuming

a \geq 0

2^{2} = 2

= 2 i

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Frequently Asked Questions (FAQ)

What is sqrt(-2^2) ?
The solution to sqrt(-2^2) is 2i