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Solve for a (complex solution)
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Solve for a
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a=a
Anything plus zero gives itself.
a-a=0
Subtract a from both sides.
0=0
Combine a and -a to get 0.
\text{true}
Compare 0 and 0.
a\in \mathrm{C}
This is true for any a.
a=a
Anything plus zero gives itself.
a-a=0
Subtract a from both sides.
0=0
Combine a and -a to get 0.
\text{true}
Compare 0 and 0.
a\in \mathrm{R}
This is true for any a.