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Please answer the attached question and chose from the provided options.

Please answer the attached question and chose from the provided options.-example-1
User Nolo
by
5.6k points

1 Answer

3 votes

Answer:

Option A
-(19)/(74)+(71)/(74)i

Explanation:

we know that

To divide complex numbers, you must multiply by the conjugate.

we have


(-8+3i)/(5+7i)

To find the conjugate, change the sign between the two terms in the denominator

so


(-8+3i)/(5+7i)((5-7i)/(5-7i))=(-40+56i+15i-21i^(2))/(25-49i^(2)) \\\\=(-40+71i-21(-1))/(25-49(-1)) \\\\=(-19+71i)/(74)\\\\=-(19)/(74)+(71)/(74)i

User Gautham Kantharaju
by
5.2k points