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3 years ago

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(3 + 4i) - (8 -5i) Write answer in standard form a +bi Group of answer choices

1 answer:

Anton [14]3 years ago

5 0

Answer:

$A=-5+9i$

Step-by-step explanation:

$\left(3+4i\right)-\left(8-5i\right)\\\\\mathrm{Group\:the\:real\:part\:and\:the\:imaginary\:part\:of\:the\:complex\:number}\\\left(a+bi\right)\pm \left(c+di\right)=\left(a\:\pm \:c\right)+\left(b\:\pm \:d\right)i\\\\=\left(3-8\right)+\left(4+5\right)i\\3-8=-5\\4+5=9\\\\=-5+9i$

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olga_2 [115]

Answer:

Vector equation:

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Step-by-step explanation:

The line is parallel to the vector 3i + 2j − k.

So the vector of this line is a multiple of this vector, so i will use 6i + 4j - 2k.

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