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3 years ago

Simplify 4 divided by -2 -2i

Mathematics

2 answers:

arlik [135]3 years ago

4 0

Answer:

-1+i

Step-by-step explanation:

We multiply by the complex conjugate (a+bi) has a complex conjugate a-bi

Remember that i^2 = -1

4 -2+2i

--------- * -----------

-2-2i -2 +2i

4 * (-2+2i ) = -8 +8i

(-2-2i) * (-2+2i ) = 4 -4i + 4i -4i^2 = 4 -4(-1) = 4+4 = 8

Replacing this into the fraction

-8+8i

-----------

Factor out and 8

8(-1+i)

-----------

Cancel

-1+i

Margarita [4]3 years ago

4 0

He's right, the answer is -1+i

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valina [46]

Answer:

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Step-by-step explanation:

We are given the following in the question:

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3 years ago

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vovikov84 [41]

Answer:

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Step-by-step explanation:

Given

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Open bracket

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