Question 540348
{{{(2+i)/(2-i)}}}
If you multiply numerator and denominator by 2+i you will have a real denominator
{{{(2+i)/(2-i)=(2+i)^2/((2+i)(2-i))=(4+4i+i^2)/(2^2-i^2)=(4+4i-1)/(4+1)=(3+4i)/5=3/5+(4/5)i}}}