What is sqrt(-11)*sqrt(-7) ?

The solution to sqrt(-11)*sqrt(-7) is -sqrt(77)

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simplify sqrt(-11)*sqrt(-7)

simplify

- 11 \cdot - 7

- 77

Decimal Notation

- 8.77496 \dots

Solution steps

- 11 - 7

- 11 = 11 i

= 11 i - 7

- 7 = 7 i

= 11 i 7 i

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= 11 i^{2} 7

= 117 i^{2}

117 = 77

= 77 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= 77 (- 1)

Apply rule:

a (- b) = - ab

77 (- 1) = - 77 \cdot 1

= - 77 \cdot 1

Apply rule:

a \cdot 1 = a

= - 77

\frac{1}{3} (6)^{3}

\frac{5 x - 9}{3} + \frac{x}{2} = 10

(4 x + 9 i) (x - 1 i)

16 - m^{2}

3 x + 5 (\frac{225}{73}) - 3 (\frac{140}{73}) = 8