Find a polar equation in the form r cos(? - ?0) = r0 for the given line.
x + y = 4
A. r cos 
= 2
B. r cos 
= 2
C. r cos 
= 2
D. r cos 
= 2
Answer: D
Mathematics
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A. -6 B. -18 C. 18 D. 6
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A. t < 6
B. t ? -9
C. t ? -9
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