1. POtęgi i pierwiastki
a .) [a^6 * a^5 : (a^4)^2]^7 =
b.) (2/3) ^1-3/4] ^-1 =
c.) pierwiastek z36/25
d. pierwiastek z 81/400
e . pierwiastek z 79
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(a^11 : a^8)^7= (a^3)^7= a^21
(2/3 - 3/4)^-1= (8/12-9/12)^-1= (-1/12)^-1= -12
6/5
9/20
to sie chyba nie da wyciagnac zostaje moim zdaniem pierwiastek z 79 :)
b)![[(2/3) ^1-3/4] ^{-1}=\frac{1}{(2/3) ^1-3/4}=\frac{1}{2/3-3/4}=\frac{3}2 -\frac{4}3=\frac{9}6-\frac{8}6=\frac{1}6 [(2/3) ^1-3/4] ^{-1}=\frac{1}{(2/3) ^1-3/4}=\frac{1}{2/3-3/4}=\frac{3}2 -\frac{4}3=\frac{9}6-\frac{8}6=\frac{1}6](https://tex.z-dn.net/?f=%5B%282%2F3%29+%5E1-3%2F4%5D+%5E%7B-1%7D%3D%5Cfrac%7B1%7D%7B%282%2F3%29+%5E1-3%2F4%7D%3D%5Cfrac%7B1%7D%7B2%2F3-3%2F4%7D%3D%5Cfrac%7B3%7D2+-%5Cfrac%7B4%7D3%3D%5Cfrac%7B9%7D6-%5Cfrac%7B8%7D6%3D%5Cfrac%7B1%7D6)
c)
d)
e)