Since complex numbers are legitimate mathematical entities, just like scalar numbers, they can be added, subtracted, multiplied, divided, squared, inverted, and such, just like any other kind of number.
Addition of complex numbers in rectangular form (a + ib ) is easy. For addition, simply add up the real components of the complex numbers to determine the real component of the sum, and add up the imaginary components of the complex numbers to determine the imaginary component of the sum.
For example If z1 = x+iy and z2= r+is are two complex numbers, then their sum z3 = z1+z2 can be expressed as (x+r)+i(y+s).
Addition of complex numbers in rectangular form (a + ib ) is easy. For addition, simply add up the real components of the complex numbers to determine the real component of the sum, and add up the imaginary components of the complex numbers to determine the imaginary component of the sum.
For example If z1 = x+iy and z2= r+is are two complex numbers, then their sum z3 = z1+z2 can be expressed as (x+r)+i(y+s).
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