Sagot :
Answer:
{1-3i}{2+5i}
Step-by-step explanation:
- 1(2+5i)-3i(2+5i)
- 2+5i-6i+15i2
- 2+5i-6i+15(-1)
- 2+5i-6i-15
- 2-15+5i-6i
- -13-i (answer)
Answer:
[tex]\frac{-13 - 11i}{29}[/tex]
Step-by-step explanation:
You need to multiply the numerator and denominator by the conjugate of
2 + 5i, which is 2 - 5i
So, [tex]\frac{(1 - 3i)(2 - 5i)}{(2 + 5i)(2 - 5i)} = \frac{2 - 11i - 15}{4 +25} = \frac{-13 - 11i}{29}[/tex]