[微積] 有關均值定理應用
suppose that function f(x) is continuous on [a,b]and differentiable on (a,b),and 0<a<b.
If. f(a)=ka
f(b)=kb. for some k
show that there exists c∈(a,b) s.t. the tangent line of y=f(x) at c passes through the origin
不太會解這個
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