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Popular >

simplify (-81)^{1/2}

Solution

simplify

(- 81)^{\frac{1}{2}}

Solution

9 i

Solution steps

(- 81)^{\frac{1}{2}}

Apply radical rule:

a^{\frac{1}{2}} = a

(- 81)^{\frac{1}{2}} = - 81

= - 81

Apply radical rule:

- a = a - 1

- 81 = 81 - 1

= 81 - 1

Apply imaginary number rule:

- 1 = i

= 81 i

81 = 9

= 9 i

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16x-7<=-7116x-7<=-71

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(8^{\frac{1}{4}})^{3}

(4x-2)/5+(14-3x)/4 =3

\frac{4 x - 2}{5} + \frac{14 - 3 x}{4} = 3

Frequently Asked Questions (FAQ)

What is (-81)^{1/2} ?
The solution to (-81)^{1/2} is 9i