1.

(a+ib) (1+I) = 2 + I (i = imaginary number)​

Answer»

-STEP EXPLANATION:(a+ IB) (1+l) = 2+l = (a+la) (ib+ibl) = (iab+aibl+laib+l^2aib) = {(2laib)+iab+l^2aib}



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