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³√y=½, więc y=1/8=0,125
xy=256*0,125=64
⁵√xy=⁵√64=2.
Odp. 2
x=16*16
x=256
³√y=½
y=½*½*½
y=1/8(jedna ósma)
⁵√xy=⁵√256*1/8=⁵√32=2
Odp.2
y=(½)³→y=⅛
⁵√xy=⁵√²⁵⁶/₈=⁵√32=2