數學與統計
大學
請問這題怎麼解，感謝🙏
（（附答案
41. SUPPLY RATE When the price of certain
commodity is p dollars per unit, the manufacturer
P
is willing to supply x hundred units, where
3p2 - x2 = 12
How fast is the supply changing when the price
is $4 per unit and is increasing at the rate of
87 cents per month?
dx
1.74 or
increasing by 174 units per month
di
解答
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