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If z=x+iy then the equation of a straigh...

If `z=x+iy` then the equation of a straight line `A x+B y+C=0` where `A ,B ,C in R ,` can be written on the complex plane in the form ` a z+a z +2C=0` where `' a '` is equal to `((A+i B))/2` (b) `(A-i B)/2` `A+i B` (d) None of these

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