Oblicz: a) 2*5(do kwadratu) - 3(do kwadratu)
b) (-6)(do kwadratu) : (-3)(do sześcianu)
c) (2 1/2) (do kwadratu) - (1/2) (do 4)
d) 2* (1/3) (do kwadratu) + 7/9
e) 8* (1/4) (do kwadratu) - (1/3)(do 3) *9
f) 5* (-1/5)(do kwadratu) + 6 * (1/5) do 0 - 0,2
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a) 2*5do2 -3do2 = 2*25 +9 = 59
b) -6do2 :(-3) do 3 = 36 : (-27) = -1 i 9/27 = -1 i 1/3
c) (2i1/2)do2 - (1/2)do 4 =( 5/2) do 2 -(1/2)do4 = 25/4 -1/16 = 6i1/4-1/16=
= 6 i 4/16 - 1/16 = 6 i 3/16
d) 2 *(1/3)do2 + 7/9 = 2*1/9 +7/9 = 2/9 + 7/9 = 9/9 = 1
e) 8*(1/4)do2 -(1/3) do3 * 9 = 8*1/16 - 1/27 * 9 = 1*1/2 - 1/3*1 =
= 1/2 - 1/3 = 3/6 - 2/6 = 1/6
f) 5* (-1/5) do2+6*(1/5) do 0 -0,2= 5* 1/25 +6*1 -0,2= 1*1/5 +6-0,2=
= 1/5 +5,8 = 0,2+5,8 = 6