What is (sqrt(-1))^2 ?

The solution to (sqrt(-1))^2 is -1

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simplify (sqrt(-1))^2

simplify

(- 1)^{2}

- 1

Solution steps

(- 1)^{2}

Apply imaginary number rule:

- 1 = i

= i^{2}

Apply imaginary number rule:

i^{2} = - 1

= - 1

\frac{a ^{- 1} + 5}{a ^{- 1} - 5}

\frac{( x ^{2} + 3 x + 2 )}{( x - 4 )} < 0

- 2 x^{2} + 15 x - 7

\frac{4}{7} \cdot 4

- (2 x + 1)^{6}