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Mathematics 8 Online
OpenStudy (maheshmeghwal9):

Plz help:)

OpenStudy (maheshmeghwal9):

OpenStudy (maheshmeghwal9):

Please solve according to above attachment:) this one: -\[\sqrt{i}.\]

OpenStudy (anonymous):

What exactly is ur question? i cant see what you typed kinda unclear. is it a sqrt(i)?

OpenStudy (maheshmeghwal9):

ya it is: -|dw:1338964450066:dw|

OpenStudy (maheshmeghwal9):

@tiaph

OpenStudy (anonymous):

Let sqrt(i) = x+yi squaring both sides, i = x^2 - y^2 + 2xyi By equating the real parts and the un real parts, x^2 - y^2 = 0 and 2xy=1 x^2-y^2 = 0 x^2= y^2 x=y Substitute x=y to 2xy=1 2x^2 = 1 x^2 = 1/2 x= sqrt(1/2) Since x= sqrt(1/2), y also =sqrt(1/2) sqrt(i) = x+yi = sqrt(1/2) + sqrt(1/2) i

OpenStudy (maheshmeghwal9):

@tiaph why it is not like this:?\[\sqrt{1/2}=\pm 1/\sqrt{2}.\]

OpenStudy (anonymous):

yea that is also the same.

OpenStudy (maheshmeghwal9):

then why did u put only x= 1/sqrt{2} in ur solution?

OpenStudy (maheshmeghwal9):

can't we write this as |dw:1338965475894:dw|

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