ݷʱ : 2025/5/2 3:15:25һ µȫĶ
ѧƣѧ ⣺2.1.4ż ѧĿ꣨άͨ ͨʵѧ⺯żԸ伸壬ѧúͼоʣѧöжϺżԡͨѧϰѧһνϵ˼룬ܴһ˼ά̣ͨͼ漰żԵĽʾһѧĶԳг ѧص: żԵĶͼ塣 ѧѵ㣺żԵжϡ ѧ ѧ ¿ν ͼ ѧżĶ ö֤żԣʱ 3 5 18ֽʦ ѧ 1кͼ۲仯ɣ ͼ۲ͼ 2żԶ ѧͬ1ż: 躯y?f(x)ĶΪDżDڵһxкĸ________________,ż. (2) 溯: 躯y?f(x)ĶΪD Dڵһx ________________,溯. 3һ溯ͼ _____________ΪԳĵ________ͼΣ ֮һͼһԭΪԳ ĶԳͼΣ ____________________. 4һżͼ _____________ΪԳ________ͼΣ ֮һͼyԳƣ ____________________. 1жкż ʦ30ҳ 89ҳ
żʽ żжʽ 14 ֽͬ̽ 12 (4) f(x)?x3? f(x)?2xx?1 67(5) f(x)?x (6) f(x)?x (7) 1f(x)?2 x 2֪f(x)溯ҵx?0ʱ ѧf(x)?x2?2xx?0ʱf(x)ıʽ ⣬21.f(x)?ax?bx?c(a?0)żĿ 1f(x)?x?x 2f(x)?x?11 332g(x)?ax?bx?cxǣ 2.y?f(x),x?R溯ң Af(?1)?f(?2) B. C.f(?1)?f(?2) D.ȷ 3.f(x)Rϵż[0,??)ϵиʽǣ 32f(?1)?f(?2) 5.֪y?f(x)żͼxĸ㣬f(x)?0ʵĺΪ A4 B.2 C.1 D.0 С 2 żԶ壬жżԣżʽ ش 1.ż 31ҳ 89ҳ
ҵѵ 1.f(x)?a,a?0_______. 2.g(x)ΪRϵ溯ôg(a)?g(?a)?______________. 3.溯f(x)[37]Сֵ5ôf(x)[-7,-3]ϵ______________ֵΪ____________. 24.f(x)?x?xż 5.y?f(x)溯ͼһΪ(a,f(a))ͼع㣨 A (a,f(?a)) B. (?a,f(a)) C. (?a,?f(a)) D. (a,1) f(a)6.f(x)ΪRϵżҵx?(??,0)ʱf(x)?x(x?1)x?(0,??)ʱf(x)?_____________________________. ˼
32ҳ 89ҳ
ѧƣѧ ⣺2.2.1һκκ ѧĿ꣨άͨ ͨѧһκĶ壬kbļ壬նκĶ壬䷽Գ̡᷽ꡢֵửκͼͼۺʣͨʵѧϵĺ壬мӦ ѧص: һκͶκۣ ѧѵ㣺ϵӦ ѧ ѧ ¿ν һζκ һζκʽ ʱ 8 18 ѧϰһζκ 1.һκ 2һκʣ 1ֵĸıԱĸııֵʲô? 2бkķ뺯ԵĹϵʲô? 3bȡֵԺżԵӰʲô? 4ͼĽʲô? 3.κ 4.κʣ 1κy?ax2?bx?c(a?0)Ķ,Գ;a?0ʱߵĿ,ԣa?0ʱߵĿڣԣֵ 2۶κżԣ 3䷽y?ax2?bx?c 5.ϵĺ ѧ 1 躯f(x)??2x?3,(?1?x?1),ֵΪ2y=2x-1yϵĽؾΪύΪ3һκy=kx+bͼһޣ 4һκy=kx+bk<0,b<0,ͼ ䷽κѧ ѧͬ̽һζκ ʦֽͬ̽ 33ҳ 89ҳ