[請益] 這題邊際收入怎算出來的??
http://goldensun.get.com.tw/exam/answer/96kp/PDF-K/K21.pdf
第二題的第一題問答
裡面有求MR(邊際收入)但是我怎算
都算不出MR=26-Q
請問如何算出來的 麻煩拜託了
這題解不出來 後面都無法作答了 唉
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