想请教一道大一的微积分题，给个大概的idea即可，多谢！

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1. A model consists of these two equations:

M = lPY + L(r) and S(y,r,g) = I(Y,r)

M, l and P are positive constants, and L, S, I are differentiable functions. Assume that g is a parameter. Differentiate the system and find expressions for dy/dg and dr/dg.

 

[ten]

up

 

[猫胖胖]

up

找教育局网上的tutor！

 

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多谢，已经自行解决了，