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3 years ago

Use square roots to solve theequation x2 = -121 over thecomplex numbers.

Mathematics

1 answer:

balandron [24]3 years ago

5 0

Answer:

x = ±11i

Step-by-step explanation:

x^2 = -121

Take the square root of each side

sqrt(x^2) = sqrt(-121)

sqrt(x^2) = sqrt (-1) *sqrt(121)

We know that the sqrt(-1) is i

x = i ( ±11)

x = ±11i

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Answer:

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Step-by-step explanation:

Explanation:-

step(i):-

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Given Margin of error = 10 cm

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$M.E = \frac{Z_{\alpha } S.D}{\sqrt{n} }$

Step(ii):-

Given level of significance ∝ = 99 % or 1 %

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Final answer:-

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3 years ago

Use square roots to solve theequation x2 = -121 over thecomplex numbers.​

Use square roots to solve theequation x2 = -121 over thecomplex numbers.