If \[pv=81\], then \[\frac{dp}{dv}\] is at v = 9 equal to [MP PET 1999

1.	If \[pv=81\], then \[\frac{dp}{dv}\] is at v = 9 equal to [MP PET 1999]
A.	1
B.	?1
C.	2
D.	None of these
Answer» C. 2

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If \[pv=81\], then \[\frac{dp}{dv}\] is at v = 9 equal to [MP PET 1999]

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