Решаем обратную xyz · 73 = ab 254 3z -число, оканчивающееся на 4 это 3 на 8 значит z=8 перепишем столбиком х у 8 7 3 3х(3у+2)4 7х(7у+5)6 при сложении 3у+2 + 6 - число, оканчивающееся на 5 если 3у +8=15 , тогда у- дробное если 3у+8 =25, то у - дробное 3у+8 =35 у= 9 теперь снова х98 умножим на 73 столбиком х 9 8 7 3 (3х+2) 9 4 (7х+6)8 6 а в 2 5 4 3х+2+8+1 ( в остатке от 15) дает число, оканчивающееся на 2 это получится при х=7 итак 798 умножим на 73 и получим 58254
I want you to tell, as I rested this summer. The first month of holidays spent in the preparation of for the competition, which took place in the Tauride this urban village. The competition was fun, though, we took the last place. After the competition me and my parents went to rest in Kazakhstan was a lot of fun . I was in Astana saw many very interesting. When I came home, I had at school internship. In practice, we help the school, performing various jobs.
In the evening I went for a walk with friends. After practice I went to the city of Omsk. In the city I'm good had a rest. Home When it rained, I heard the music and watched movies. These holidays I spent the gut. Write me, how did you spend your holiday!
Пусть
а - один катет и
в - второй катет, тогда
12*2=а*в откуда ответ:
1) а=1, в=24
2) а=2, в=12
3) а=3, в=8
4) а=4, в=6...