annabelcontrera annabelcontrera

11-07-2019
Mathematics

contestada

given the expression (7-4i)-(2+6i), perform the indicated operation and write the answer in the form a+bi

given the expression 74i26i perform the indicated operation and write the answer in the form abi class=

Respuesta :

calculista calculista

21-07-2019

Answer:

[tex]5-10i[/tex]

Step-by-step explanation:

we know that

To subtract two complex number, subtract the real parts and subtract the imaginary parts

so

[tex](a+bi)-(c+di)=(a-c)+(b-d)i[/tex]

we have

[tex](7-4i)-(2+6i)[/tex]

so

[tex](7-4i)-(2+6i)=(7-2)+(-4-6)i=5-10i[/tex]

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