Complex Numbers Complex numbers are the numbers of the form $a+ ib$ where $i= \sqrt {-1}$ and a and b are real numbers Algebra for i $i= \sqrt {-1}$$i^2= -1$$i^3 =i \times i^2= -i$$i^4= i^2 \times i^2 = 1$$i^{4n} =1$$i^n + i^{n+1} + i^{n+2} + i^{n+3} =i^n( 1 + i +i^2 + i^3 ) = […]
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