1 . Oblicz wartośc wyrażenia : a) 3/4 * ( 2/3 )² - 1/ 2 * ( - 4 )do potęgi 3
b ) 5 * ( - 0,5 )² * ( -1 ) do potęgi 3 + 4 * | - 1/2 - ( -1 )| 2 .
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a) 3/4 * ( 2/3 )² - 1/ 2 * ( - 4 )do potęgi 3=3/4*(4/9)-1/2*-64=3/4*9/4+64/2=27/16+32=1 10/16+32=33 10/16
b ) 5 * ( - 0,5 )² * ( -1 ) do potęgi 3 + 4 * | - 1/2 - ( -1 )| 2 =5*0,25*-1+4*|1 1/2|=-1,25+ 6=4,75