√25 =5 bo 5²=25
√144=12 bo 12²=144
a teraz zadanie
2√81/16-3√256/625=
=2·9/4-3·16/25=
=4,5-48/25=
=4.5-1,92=
=2,58
========================================================
√25 =5 ~ 5²=25
√144=12 ~ 12²=144
2√81/16-3√256/625=2·9/4-3·16/25=4,5-48/25= 4.5-1,92=2,50
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√25 =5 bo 5²=25
√144=12 bo 12²=144
a teraz zadanie
2√81/16-3√256/625=
=2·9/4-3·16/25=
=4,5-48/25=
=4.5-1,92=
=2,58
========================================================
√25 =5 ~ 5²=25
√144=12 ~ 12²=144
2√81/16-3√256/625=2·9/4-3·16/25=4,5-48/25= 4.5-1,92=2,50