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Mathematics 9 Online
OpenStudy (anonymous):

Imaginary i questions? help?

OpenStudy (anonymous):

OpenStudy (anonymous):

i think its a but im not sure

OpenStudy (anonymous):

no wait d

OpenStudy (anonymous):

sqrt(-28) = sqrt(28) multiplied by sqrt(-1) = sqrt (28) times i since sqrt(28) = sqrt(4) times sqrt(7) = 2 sqrt(7)... you get sqrt (-28) = 2i sqrt(7)

OpenStudy (anonymous):

Thank you lovely! so it is d?

OpenStudy (anonymous):

I showed you a step-by-step solution @blahkatherine

OpenStudy (anonymous):

yes, D.

OpenStudy (anonymous):

thank nu <3

OpenStudy (anonymous):

Welcome.

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