sqrt(-1/1)=sqrt(1/-1)

sqrt(-1)*sqrt(-1)=sqrt(1)*sqrt(1)

i*i=1

i^{2}=1

but as per definition i^{2}= -1.

please tell me which step is wrong.

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- Feb 8th 2013, 09:20 AMdeepakwhich step is wrong
sqrt(-1/1)=sqrt(1/-1)

sqrt(-1)*sqrt(-1)=sqrt(1)*sqrt(1)

i*i=1

i^{2}=1

but as per definition i^{2}= -1.

please tell me which step is wrong. - Feb 8th 2013, 09:27 AMPlatoRe: which step is wrong