Oblicz: a). ∛3 ⅜ / 1,5 - (-1)^15 =
b). 1,8 * (2/3)^2 / 1 i 1/7 =
BŁAGAM, DAM NAJ !
∛3 ⅜ / 1,5 - (-1)^15 =
= ∛27/8 / 1,5 -(-1)=
= 3/2 /1,5 + 1=
= 3/2 / 1 i 5/10 + 1=
= 3/2 / 1 i 1/2 + 1=
= 3/2 : 3/2 + 1=
= 3/2 * 2/3 + 1=
= 1/1 * 1/1 + 1=
= 1+ 1=
= 2
1,8 * (2/3)^2 / 1 i 1/7 =
1 i 8/10 * 4/9 / 8/7=
= 18/10 * 4/9 * 7/8=
= 2/5 * 2/1 * 7/8=
= 1/5 * 2/1 * 7/4=
= 14/20=
= 7/10=
= 0,7
a)
b)
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∛3 ⅜ / 1,5 - (-1)^15 =
= ∛27/8 / 1,5 -(-1)=
= 3/2 /1,5 + 1=
= 3/2 / 1 i 5/10 + 1=
= 3/2 / 1 i 1/2 + 1=
= 3/2 : 3/2 + 1=
= 3/2 * 2/3 + 1=
= 1/1 * 1/1 + 1=
= 1+ 1=
= 2
1,8 * (2/3)^2 / 1 i 1/7 =
1 i 8/10 * 4/9 / 8/7=
= 18/10 * 4/9 * 7/8=
= 2/5 * 2/1 * 7/8=
= 1/5 * 2/1 * 7/4=
= 14/20=
= 7/10=
= 0,7
a)
b)