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narmina2017
@narmina2017
July 2022
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Решите
1.
а) 3/8*2/7 б) 2 1/3*6/7 в) 5 2/5 *(-1 2/3) г) -9/10*(-2/9)
2.
а) 4/9:1/3 б) 5/6 :3 1/8 в) -12:(- 6/11) г) 2 3/4:(-1 1/2)
3.
(-1/3)^3
-3/4*8:(-2/3)^2
Заранее БОЛЬШОЕ Спасибо!! ♥♥♥
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Answers & Comments
DracoshaBond
1.
а)3/8*2/7=(3*2)/(8*7)=(3*1)/(4*7)=3/28
б)2 1/3*6/7=7/3*6/7=2/1=2
в)5 2/5*(-1 2/3)=-(27/5*5/3)=-(9/1)=-9
г)-9/10*(-2/9)=9/10*2/9=2/10=0,2
2 votes
Thanks 1
DracoshaBond
2. а)4/9:1/3=4/9
DracoshaBond
б)5/6:3 1/8=4/15
DracoshaBond
в)-12:(-6/11)=2*11=22
DracoshaBond
г)2 3/4:(-1 1/2)=-11/6=-1 5/6
narmina2017
А 3.?
DracoshaBond
3. а)(-1,3)^3=-2,197
DracoshaBond
б)-3/4*8:(-2/3)^2=-6:4/9=-8/3=-2 2/3
narmina2017
Надеюсь правильно спасибо
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Answers & Comments
а)3/8*2/7=(3*2)/(8*7)=(3*1)/(4*7)=3/28
б)2 1/3*6/7=7/3*6/7=2/1=2
в)5 2/5*(-1 2/3)=-(27/5*5/3)=-(9/1)=-9
г)-9/10*(-2/9)=9/10*2/9=2/10=0,2