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Oliga [24]
4 years ago
5

How do you do 7-12? How do you do 13-18?

Mathematics
2 answers:
eimsori [14]4 years ago
7 0
7-12 is like a negative number so it will be -5. And 13-18 would be -5 also. 
Alja [10]4 years ago
3 0
What you need to do is take 7-12 and 13-18 and flip them and add a negative sign to your answer .
So 7-12= -5 and 13-18= -5
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The correct rectangular equivalence of 3sqrt(2)·cis(7pi/4 ) is:

3sqrt(2)·cos( 7pi/4 ) + i·sqrt(2)·sin( 7pi/4 )  =  3 - 3i.

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<h3>What is rectangular equivalence?</h3>

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