Page 14 - 高中数学小题狂做·选择性必修第一册·BS

! ! ! !
! ( !
3! 45&" '(&")# *%$)!
+! ,"* " # # & $ \!"" " $ # !+ $# # " !# # ' $ $%&d# 2&3!!!!!

!$! %& $\' =d$ˆ‰º\ ( =d$ˆ‰s+ # k!"" " . # !$ $# 2%&$ $?‡*
!!!!!!!!!

!!! " + $4 ! " * " !$ # # $# \ Q a b = d $ ˆ ‰ ^ } w t . $ % & $ ˆ ‰ ™ ?
‡* !!!!!!!! '

" $ $ !"" !$ # / $ k\Qab=d$ˆ‰^»*#$%&$ˆ‰™?‡: !!!!!!!!!
!%! !"* " ' # + $ ¼%&$ 01n' =# =>¤=t" # # Q"# 3 *abN"! ½ 3" 1
(
3# 6§¨7ž# %& $$?‡* !!!!!!!!!

6! 78&" 789:;<=/>?@A! BACDEFGHI!
$
#
!#! ij ( "#+ $¾"" " + # !+ $# &l#+ $."*," # # !
$
" + $ x#+ d$.&e\%&$?‡'

" $ $ ,x#+ e\%&\Qab=d$ˆ‰^}:5 # x#+ e\%&$?‡!