lkyereansah lkyereansah

16-02-2021
Mathematics

contestada

if (a+b)+(a-b)i=7+2 find a and b

Respuesta :

abidemiokin abidemiokin

22-02-2021

Answer:

a = 4.5

b = 2.5

Step-by-step explanation:

The question is incomplete.

Complete question

If (a+b)+(a-b)i=7+2i find a and b

Compare the terms on both sides

a+b = 7

a-b = 2

Add both equations

a+a = 7+2

2a = 9

a = 9/2

a = 4.5

Recall:.

a+b = 7

4.5+b = 7

b = 7-4.5

b = 2.5

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