n/8<29/40<br>
(n•5)/(8•5)<29/40<br>5n/40<29/40<br>5n<29<br>n<29/5<br>n<5 4/5 </span>
Ответ:
При n= 1,2,3,4,5.
1/8<29/40; 2/8<29/40; 3/8<29/40; 4/8<29/40; 5/8<29/40. </strong>
2)) n/2< 17/30
(n•15)/(2•15)< 17/30
15n/30< 17/30
15n<17<br>n<17/15<br>n<1 7/15<br>Ответ:
При n=1.
1/2<17/30. </strong>
3)) n/4<11/12</strong>
(n•3)/(4•3)< 11/12
3n/12<11/12<br>3n<11<br>n<11/3<br>n<3 2/3<br>Ответ.
При n= 1,2,3.
1/4<11/12; 2/4<11/12; 3/4<11/12. </strong>
4)) n/9<5/36</strong>
(n•4)/(9•4)<5/36<br>4n/36<5/36<br>4n<5<br>n<5/4<br>n<1 1/4 </span>
Ответ :
При n=1
1/9<5/36.</strong>