求函數(shù)f(x)=x^3+(3/x)的單調(diào)區(qū)間和極值
1,求函數(shù)f(x)=x^3+(3/x)的單調(diào)區(qū)間和極值
遞增區(qū)間(-∞,1),(1,+∞)
遞減區(qū)間(-1,0),(0,1)
極大-4,極小4
2,求函數(shù)y=(x^3/3)+x^2-3x-4在[-4,2]的單調(diào)區(qū)間
遞增區(qū)間[-4,-3]或[1,2]
遞減區(qū)間[-3,1]
3,拋物線y=x^2/2上與點(diǎn)A(6,0)的距離最近的點(diǎn)是____(2,2)_________
4,函數(shù)f(x)=cosx(1+sinx)的單調(diào)減區(qū)間為_(kāi)_____(2kπ+π/6,2kπ+5π/6)(k∈z)_____________