确定三次函数[tex=13.857x1.5]JuM9yu8/A+VCr9Xx9fEi4acMeXAB21FXI3E4Vmd1T45+tPYiCnx31JuguKU/FLNu[/tex]中参数[tex=0.571x0.786]7G1MINzwputr5mgALyjQfA==[/tex],[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex],[tex=0.5x0.786]H94ItHP9PspVDDqF8nLRWA==[/tex]应满足的条件,使得(1) [tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex]单调增加;(2) [tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex]有极值.
举一反三
- 已知整数[tex=0.571x0.786]7G1MINzwputr5mgALyjQfA==[/tex],[tex=0.429x1.0]JThLUuJ8WswSAPiYZWihWg==[/tex],[tex=0.5x0.786]H94ItHP9PspVDDqF8nLRWA==[/tex]都大于1,求证[tex=8.857x1.357]rS6Wbz3mP4SybsTKX7TGH9Zo860W5wPLmncH6KyMKko=[/tex]
- 设[tex=14.357x1.5]EHg6u0RtM0uHjYsjt8e3MnnjUcbTl6z+ysAAoacss+neJeOP1D4OvtFGKEIdU3pZcVPLkH+lhyaRIrhoEBo1EQ==[/tex],如果3是[tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex]的二重根,求[tex=0.571x0.786]7G1MINzwputr5mgALyjQfA==[/tex],[tex=0.429x1.0]dX3JVuFw9r8t2KlWf+/Z+A==[/tex]。
- 设[tex=9.0x2.857]dT5tO8+kvspSX29znp6hWPcRleyC/Oor3hOtFnEeVKWMhAwyQN1L849Sg2m7O8+O[/tex].(1)证明[tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex]是以[tex=0.571x0.786]l57IXZOdm4C+U7oqJ3rVIQ==[/tex]为周期的周期函数;(2)求函数[tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex]的值域.
- 设 [tex=11.643x1.357]oTHWUnECoN4UNiGFVZoHA6aTyRMpVVzUfRE1/OUCXUda+cK8PWDBj4DGgVDCvWMH[/tex] 求适合下列条件的点[tex=0.571x0.786]ZKO2xs0EgSemzoH7MSmYTA==[/tex](1) [tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex] 的最大、最小值点.(2) [tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex] 增加最快、最慢的点.(3) [tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex] 图像的切线斜率增加最快的点.
- 设函数[tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex]对一切实数[tex=0.571x0.786]ZKO2xs0EgSemzoH7MSmYTA==[/tex]满足关系式[tex=12.143x1.571]oe6Y6KRQZY0QeXLoNKQj2DVVRBW7T0DL8xdrtxeSAEoXt8XX9huFYhQt/cuGw/8AYID9CLGbIkfiAmVNgp4LppysqTV/2DsOaMNLjQWUZ1HIkuZNLAXNso46jkt+HsoP[/tex](1) 若[tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex]在点[tex=6.5x1.286]v96cVO/vN8TOnG6sstlXr29k5oMFbB4Oct7UG0scbYvUjzk3AdAIJTKxq5gTYDgP[/tex]处有极值,试证它是极小值.(2) 若[tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex]在点[tex=2.429x1.0]bOlCq/PHWhsSVMaVf7Obdg==[/tex]处有极值,则它是极大值还是极小值?