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proof-that-z-2-z-z-C-example-i-1-i-2-1-i-4-1-i-4-i-2-1-1-1-1-

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Question Number 52200 by gunawan last updated on 04/Jan/19
proof that (√z^2 ) ≠ z , z ∈ C example i=(√(−1)) i^2 =−1 i^4 =1 (√(i^4 )) ≠ i^2 (√1) ≠ −1 1 ≠ −1
proofthatz2≠z,z∈Cexamplei=−1i2=−1i4=1i4≠i21≠−11≠−1

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