matematika

1. e. Yu - 7y' + tz1 , g"'
f,b , r'-?r+1t " o
f r+) ( .<)=o
F,=3V.r,{
tfrt '- Oe1, * b v.'
q"ntri terohaaa:
1t : l+g b^
/' 'FA e"l''
Yu. ara g"'
*!Age' -?LsAee* ) *r(Aes*),ery
*g Agsx ,gs*
-BA 'l' A= l,
7r ' Lee"'
J z 7h+/1l