㈠α，β是实数且至少一个不为0  f(x)=αx1+βx2   C(x)=X1^2+X2^2－1 ,solve the problem  
max f(x1,x2)  subject to C(x1,x2)≤0
真是惭愧啊，无奈明天要交作业啊，各位大牛们帮帮忙吧，谢啦！
㈡
for the following production ,sketch the isoquant for q=3 and derive the cost function C(w,q=3).
f(x1,x2)=min{3x1,3x2,x1+x2}
希望各位大虾们多多帮忙啊，大恩不言谢啊！