Mathematics: I need this by 11:21 please help

m=-3/2c=+1/2Step-by-step explanation:...

I need this by 11:21 please help - id11219094100, darkremnant14

Ответ:

keananashville

09.02.2022

Mathematics

$\frac{-2+i}{-4-5i} = \frac{3}{41}-i\frac{14}{41}$

Step-by-step explanation:

$\frac{-2+i}{-4-5i}$

Apply complex arithmetic rule: $\frac{a + bi}{c + di} = \frac{(c-di) (a + bi)}{(c-di) (c + di)} =\frac{(ac+bd)+(bc-ad)i}{c^2+d^2}$

a=-2,b=1, c=-4,d=-5

$=\frac{\left(-2\left(-4\right)+1\cdot \left(-5\right)\right)+\left(1\cdot \left(-4\right)-\left(-2\right)\left(-5\right)\right)i}{\left(-4\right)^2+\left(-5\right)^2}$

Refine:

$=\frac{3-14i}{41}$

Rewrite $\frac{3-14i}{41}$ in standard complex form: $\frac{3}{41} - \frac{14}{41}i$

Final $\frac{3}{41} - \frac{14}{41}i$

Hope I helped! If so, may I get Brainliest and a Thanks?

Thank you, Have a good one! =)

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I need this by 11:21 please help

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