<span>2k+5t больше 100 ........</span>
Держи, наверно решается так
= 1 - 0.2x + 0.4y + 0.5 - 0.4y =
= 1- 0.2x + 0.5 =
= 1 - 0.2 * (-4) + 0.5 =
= 1 + 0.8 + 0.5 =
= 2.3
2
log(9)4=log(3)2
log(27)8=log(3)2
3/log(3)2-2/log(3)2-1/log(3)2=0
3
log(a)4=2log(a)2
log(8)a²=2/3log(a)2
2log(a)2*2/3log(a)2=4/3
4
log(√3)a=2log(3)a
log(9)a²=log(3)a
log(81)a=log(3)a/4
(2log(3)a+log(3)a):log(3)a/4=3log(3)a*4/log(3)a=12