ҶϲѪ֮ɳ©ȫĶ,,֧
ĬС˵
ĬС˵ С˵ С˵ С˵ С˵ С˵ С˵ С˵ ۺ С˵ ƻС˵ ȫС˵
С˵а С˵ ̽С˵ ͬС˵ ʫɢ С˵ ԽС˵ ִѧ ٳС˵ С˵ ʷС˵ ĬЦ С˵
ÿС˵ ҵĻ ׻ Ů ʻ ӳǽ ʷ Ⱥ Ů
ĬС˵ > С˵ > Ѫ֮ɳ©  :־ :19913  ʱ:2016/12/6  :3098 
һ¡‮ζ ‬ һ( )
¡ζ

һֱߵԺԣվ쳤εǰ飬һû䣬ȴֱΪʲôҪ񣬶

վǰϸ룬突ȻԺſˣsin˽ңϲˣ⾝ʲôģ˿ô𣿡

Һܺáһ⾝һ⾝װsinȻǴ󹫾顣

˶ԼЦЦڼʥ׵¿ɲˡ

ŶأҪҿû˰ʧǰ˵Ļ

³⾎ˣò˼ͻʱͿԼˣһ⾼ˣֻ˵ܻţ˭ûиȷʵţһ⾎סĸڡsinԽ˵Խ⾼ˣȥ

ǡϣָָԱߵ

sin⾊һҡ‮ͷҡ‬ˣ£㲻֪á

ŶȻԸ˵ҲûҪʣҸֻص݃ȣһԾţ˭Ҳ˵ֻǵͷָɭķֻԼµõ器

ôsinȻDz֪ǰʵ

ҡվֹ

ֻ⽑ַˣ˼ҽʿһۣ˵

ǰɣΪɣھûˣллsinû⵽Լ器Цõı飬ֻǿڻܼң׼ͣ

ǣү˵һͷվǵǰ

ˣҪ׼ʳsinһҺ֣ѵ

֪ү˵źͷȥһȺֻų͡

췢ʲô𣿡Ҷȫ糿ǰ飬̲סʵ

⡭ɭķ˿ңٿû˵ڡ

׷ʲôˣԽsinԽǺ棬ʸ⽩ɡ

ûʲô£ֻǸǿܲһˣ㻹һĺáҿ˿ڡ

ǡֻһ飬DZһĹ及һЩҲòһɣsinת⾝ҡҽʿΣҲһǧĴ壬ʵ˵ӦԶԶԼ女Ŷԡ

˵IJʵֻоȻ⾎˵Ұһֱеĺ⾊ƿ˹ȥһѽסţ⾊ɵһ䡰ô⾎ǵǵڡ

ڶġֱӻشȥ²⣬ΪҲֻҺȹڶ⾎

ڶsinƿֽ˽ֻһǧĹ壬ôܻеڶ⾎϶ǵڶģ

ȻΪҺȹڶ⾎ζǹ˰꣬Ҳǡ˵ŲɵһԼƺﻹ⾎IJм

ʲôˡ̲ס˿ڡ

ߣˣȻǣرǶ˵ӦǡһѾǰĶ䣬˵ˡ

㡭ǸŭԣϾǸ⺦ңҲûб֮ġ

ˣˡsinòó⽗׵ϡ˵еڶ⾎ôˣ㲻˵Ѿѵ˵ǰǰ⾎

Ҳһڶֲֻһλ̾˿ǰĻһۣת⾝ɳϡ

˵һڶйأsin²

ʲôҲû˵һ⡰Щ⾎ңҵǺܸ

ȵڶ⾎Ϊʲô

һƭ˵ǰʮ⾎治֪ʲôġֱڿ죬Ƕ˵£һھ˵˸һ⽩

Sinһ⾝׷ʲô£˵

⽗ĿǣֻʵԸ棬ѽ췢һȫsinsinĿ⼫Ļҡ֪ɱ㣬㻹ȣ

Ϊʲôأ

㲢֪Ƕ⾎sinһζҺ

ֻҪǹ⾎ԽԽãҵкô‮ʼ‬ҲкôȴΪȻһЦǸܼҰͶ飬⾝˹ȥֻʳĻȥ

ʲôµĻsinŭδҶ

ģ˵ďûй⾎˵突Ȼc죬סsin֮

⡭ˣˣǻòͰɣɭķǰ˸ԲҲŵ԰ȵijԶ

¾ˣһȥúõĵһ¡Եò࣬sin突Ȼ˵

¡û˲رǸͷֻųԵĻ顰۲ЩʲôҪ

ΪʲôǺʡɱ㰡һôķ

ûɱҡҵһЦһۻijԾתsinһСȺɱôҲֻһˡ

⡣sinһ㶣ȴתЦˡɣ㻹˵㵱磬ҿġ

һжĿҡ

ҳˡ⾝¥϶ȥĸжҿûʲô‮Ȥ‬˵˵ҲʵΪҺʹץ£ڵĴѾ֮٣ϧˣôɱˣһDzİ

˵ҶǺ‮Ȥ‬˭⾝վŵǵڶأ



ллҶⲿС˵֧֣һϲ鴩ԽŴС˵Ǿ֧ҵġ仨Ќm֣аٻԺԽС˵еģһ㶼УϣһϲСѾǩԼûϼܣ걾һģҷģַǣ女xingok39853html

׷

ֻһ(*^__^*)ΪߴĶŬΪ߼Ͱɣ WW.UOx.á
һ¡ Ѫ֮ɳ© һ( )
Ѫ֮ɳ©һȫС˵,־ΪṩѪ֮ɳ©½ȫĶ,ҶϲѪ֮ɳ©ȫĶ,,֧,ĬС˵ڶȫС˵ĶϲС˵Ķ