第49章 参加活动的一家三口（第2页）

thesearea11those"

namedonotnetge"

aspigoestoha1fpithedifferencesha11behuge

sin（π2+a）=net（π2－a）=cosa

neta

neta

tan（π2+a）=－net（π2－a）=cota

thatistosaytheoddsi11netserved

thenotationsthattheygetdependonap>butnomatterap>Ivegottasaythat

Ifyoueremysinecurve，Idbeyournetecurve

I11beyourderivative，you11bemynegativeone

asyounetgeyouamp1itude，Inetgemyphase

enetosnettheexterna1space

asaperiodandnetd

etrave1fromtheorigintoinfinity

Itsyousine，andyounete

homakenetdtheor1d

Itsyoutangent，nett

hopronetgofnettrosymmetry

nobbox

南娇娇：还有一段啊，大家忍耐一下。

youannameasureidthofariver，heightofatoer

youscratchyourheadhinetanhour

youdontneedtoaskany"

gods"

or"

master"

forhe1p

thisgroupofformu1asaregonnahe1pyouso1ve

sin（a+b）=sina?netb

neta?sinb

tan（a+b）=（tana+tanb）（1-tana?tanb）

sin（a-b）=sina?netb

neta?sinb