potrzebuję 3 zadanie dam naj
3.
a)
∛216 - √64 6 - 8
---------------- = ---------- = -2/7
√49 7
b)
√0,64·√(6¼) 0,8·√(25/4)
----------------- = ------------------ = 0,4·2,5 = 1
∛8 2
c)
∛(-3³/₈) - √(2¼) ∛(-27/8) - √(9/4) -3/2 - 3/2 -6/2
---------------------- = ------------------------ = -------------- = ---------- = -1
3√4 - ∛27 3·2 - 3 3 3
d)
√(3²²/₄₉) + 0,7/∛0,343 - 1³/₇ = √(169/49) + 0,7/0,7 - 10/7 = 13/7 + 1 - 10/7 = 1³/₇
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3.
a)
∛216 - √64 6 - 8
---------------- = ---------- = -2/7
√49 7
b)
√0,64·√(6¼) 0,8·√(25/4)
----------------- = ------------------ = 0,4·2,5 = 1
∛8 2
c)
∛(-3³/₈) - √(2¼) ∛(-27/8) - √(9/4) -3/2 - 3/2 -6/2
---------------------- = ------------------------ = -------------- = ---------- = -1
3√4 - ∛27 3·2 - 3 3 3
d)
√(3²²/₄₉) + 0,7/∛0,343 - 1³/₇ = √(169/49) + 0,7/0,7 - 10/7 = 13/7 + 1 - 10/7 = 1³/₇