how to

Question

+5

681

4

how do you do find the answer to (4+3i)-(√2+3i)

Guest Jan 25, 2017

Nibbler · Answer 1 · 2017-01-25T08:44:00

I'm pretty sure that is a irrational number and that's $2.585786437626905$ .

Guest · Answer 2 · 2017-01-25T08:45:06

0

how did you get that answer though, like what did you do?

Guest Jan 25, 2017

+52

0

I used the calculator on this domain web2.0calc.com and typed:

$(4+3i)-(sqrt(2)+3i)$

The preview looks like this:

$(4+3i)-(\sqrt{2}+3i)$

The answer is this:

$2.585786437626905$

Nibbler Jan 25, 2017

Guest · Answer 3 · 2017-01-25T09:24:34

Simplify the following:
4 + 3 i - (sqrt(2) + 3 i)

-(3 i + sqrt(2)) = -sqrt(2) - 3 i:
4 + 3 i + -3 i - sqrt(2)

Add like terms. 4 + 3 i - sqrt(2) - 3 i = 4 - sqrt(2):
Answer: |4 - sqrt(2)