The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).2x + 3y = 6
A. 2 sin ? + 3 cos ? = 6r
B. r(2 cos ? + 3 sin ?) = 6
C. r(2 sin ? + 3 cos ?) = 6
D. 2 cos ? + 3 sin ? = 6r
Answer: B
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A. 
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