!"# = $!"# !" = − # = − − # $ %# %# %!"#&'() ) *" ) = +,, ) - . /,,/0,1 . .2 &!"#3#.4 5 = 6 767 3 8, = 8/,, 7 7 '!"#& 9$ = − 1 = / + 1 − : −/ " = 1 = 0 = 0 + 1 1 = 8 = + 4 = / / + : + 1 = ; = + 8 = + / (!"#* " " )" = " " > , 7 < > , ) "#* 0 = : ) 0 = = ) 0 = −1 0 = / >$ 0 ? 0 ? 0 * "# @ $ / = + ) ( ,) 8) = ) (8) 8) +8 / = − ) ( ,) 8) = / ) ( ,) ,) +8 +"#. 0 8 = / + : + = = 0 / − 8 = 1 1? / = 8 ⎞ ⎛ 8 + = ⎜ − ⎟ ⎠ ⎝ = 1 1 = + 8/ " = ( 1 − / )8, 0 / − + 8 ( ) ( ) ( ) ,-#8 / ≥ , − / ≤ , :. @. 4>?.8/,,? 1 1 + / − 1 / − 0 / 1 " / / / − − / ( − 8) / 4 ; = ( − ) / > ( ) 1 − 1 / / + 0 8 − 8 / ( ) "A 8, / (1 1 ?/ + / : 1 ? /( − 8 ? ) / ) (8 + ) 8? / (8 + 8? ) / ( − ) + : + = : + / ( + ) − / ? 0( / − 8) " =( 1 − / ) ( 0 − + 8) ( +0 − 08 + A) − 1 / 1 A −= ? 0 1 / 88 /