Find the derivative of y with respect to x, t, or ?, as appropriate.y = x7ln x - 
x3
A. 8x6 - x2
B. x6 - x2 + 7x6ln x
C. x7ln x - x2 + 7x6
D. 7x6 - x2
Answer: B
Mathematics
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A. 
B. - 
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A. [0, 6] B. (-?, -6] or [0, ?) C. (-?, 0] or [6, ?) D. [-6, 0]
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