Answer:
(A - B) - C = { 1 , 4 , 6 , 7 }
Step-by-step explanation:
A = { 1 , 2 , 3 , 4 , 5 }
B = { 4 , 5 , 6 , 7 }
A - B = { 1 , 2, 3 ,6 , 7 }
C = { 2 , 3 , 4 }
It is hard to answer this but just draw the triangle ABC, and put in the side lengths, and angles.
The answer is D. The ones on the left are the domain. The ones on the right which the arrows point to are the range
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