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Popular >

simplify sqrt(-21)

Solution

simplify

- 21

Solution

21 i

Solution steps

- 21

Apply radical rule:

- a = a - 1

- 21 = 21 - 1

= 21 - 1

Apply imaginary number rule:

- 1 = i

= 21 i

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Frequently Asked Questions (FAQ)

What is sqrt(-21) ?
The solution to sqrt(-21) is sqrt(21)i