For the curve xy3 - yx3 = 6, the slope of the tangent line at the poin

1.	For the curve xy3 - yx3 = 6, the slope of the tangent line at the point (1, -1) is:
A.	1 / 2
B.	-1
C.	2
D.	1
Answer» C. 2

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For the curve xy3 - yx3 = 6, the slope of the tangent line at the point (1, -1) is:

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