Question

z1=4+3j и z2=2-5jНайти: z1*z2 и z1/z2 (дробь)Плииииззз )))

Answer 1

z1*z2=(4+3i)(2-5i)=8+6i-20i-15i^2=8+6i-20i+15=23-14i.

z1/z2=(4+3i)/(2-5i)=((4+3i)(2+5i))/((2-5i)(2+5i))=(8+6i+20i-15)/(4+25)=(-7+26i)/29=-7/29+26i/29.