A)Find (in rectangular form) the two values of sqrt(-8+6i) Solve the equation z^2 +sqrt(32)iz-6i=0.
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# A)Find (in rectangular form) the two values of sqrt(-8+6i) Solve the equation z^2 +sqrt(32)iz-6i=0.

[From: ] [author: ] [Date: 12-06-07] [Hit: ]
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a)Find (in rectangular form) the two values of sqrt(-8+6i)
b)Solve the equation z^2 +sqrt(32)iz-6i=0.

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a) -8 + 6i = -9 + 1 + 6i = -1*9 + 1 + 6i = 9i^2 + 6i + 1 = (3i + 1) ^2 or (-3i - 1)^2.

The two roots are 1 + 3i and -1 - 3i.

b) z^2 + [i * sqrt(32)] z + (-6i) = 0

a = 1, b = [i * sqrt(32)], c = (-6i)

z = { [-i * sqrt(32)] + or - sqrt(-32 + 24i) } / 4

z = { [-i * sqrt(32)] + or - [2 * sqrt(-8 + 6i)] } / 4

z = { [-i * sqrt(32)] + or - [2 * (1 + 3i)] } / 4

z = [-i * 4 * sqrt(2) / 4] + or - (1 + 3i)/2

z = -sqrt(2) * i + 1/2 + 3 * i or -sqrt(2) * i - 1/2 - 3 * i

z = 1/2 + (3 - sqrt(2)) * i or -1/2 + (-3 - sqrt(2)) * i

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Asia O`_`O
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