【摘要】aby=f(x)xoyy=f(x)xoyabf'(x)0f'(x)0復(fù)習(xí):函數(shù)單調(diào)性與導(dǎo)數(shù)關(guān)系如果在某個(gè)區(qū)間內(nèi)恒有,則為常數(shù).0)(??xf)(xf設(shè)函數(shù)y=f(x)在某個(gè)區(qū)間內(nèi)可導(dǎo),f(
2025-11-08 12:02
【摘要】函數(shù)y=f(x)在給定區(qū)間G上,當(dāng)x1、x2∈G且x1<x2時(shí)yxoabyxoab1)都有f(x1)<f(x2),則f(x)在G上是增函數(shù);2)都有f(x1)>f(x2),則f(x)在G上是減函數(shù)
2025-11-09 12:15
【摘要】函數(shù)的極值與導(dǎo)數(shù)aby=f(x)xoyy=f(x)xoyabf'(x)0f'(x)0,那么函數(shù)y=f(x)在為這個(gè)區(qū)間內(nèi)的增函數(shù);如果在這個(gè)區(qū)
2025-11-09 12:08