Oblicz:
a)(0,5)do potęgi 3 + (1/3)do potęgi 2=
ps:(1/3) to jedna druga / to kreska ułamkowa w każdym przykładzie
b)(0,1)do potęgi 3+ (0,2)do potęgi 2
c)3*(1 i 2/3)do potęgi 2-2*(0,5)do potęgi 3
d)(5 i 1/4-5,05)do potęgi 2-1/25
e)2,5*4 i 1/2-5 i 17/20podzielić na 0,9
f) (5/6+1/3):(2i 2/3-1,75)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b).(0,1)³ +(0,2)² = (1/10)³ +(1/5)² = 1/1000 +1/25 = 1/1000 +40/1000 = 41/1000
c).3 · (1 i 2/3)² - 2 · (0,5)³ = 3 · (5/3)² - 2 · (1/2)³ = 3 · 25/9 - 2 · 1/8 =
= 25/3 - 1/4 = 100/12 - 3/12 = 97/12 = 8 i 1/12
d).(5 i 1/4 - 5,05)² - 1/25 = (5 i 1/4 - 5 i 1/20)² - 1/25 =
= (5 i 5/20 - 5 i 1/20)²² - 1/25 = (4/20)² - 1/25 = (1/5)² - 1/25 = 1/25 - 1/25 =0
e).2,5 · 4 i 1/2 - 5 i 17/20 : 0,9 = 2 i 1/2 · 9/2 - 117/20 : 9/10 =
= 5/2 · 9/2 - 117/20 · 10/9 = 45/4 - 13/2 =45/4 - 26/4 = 19/4 = 4 i 3/4
f).(5/6+1/3) : (2 i 2/3 - 1,75) = (5/6 +2/6) : (2 i 2/3 - 1 i 3/4) =
= 7/6 : (2 i 8/12 - 1 i 9/12) = 7/6 : (1 i 20/12 - 1 i 9/12) =
= 7/6 : 11/12 = 7/6 · 12/11 = 14/11 = 1 i 3/11