Вычислите: 1.75 - 1 11/17* 51/56+ 0.75: (4- 1.2*(3.25- 1 1/12+ 6 2/3: 20)) (-0,1) в квадрате

(1.75-1 11//17*51//56+0.75: (4-1.2*(3.25-1 1//12+6 2//3: /(-0,1)^2=(1.75-28//17*51//56+0.75: (4-1.2*(3.25-1 1//12+6 2//3: /(-0.1)^2=(1.75-1.5+0.75: (4-1.2*(3.25-1 1//12+6 2//3: /(-0.1)^2=(0.25+0.75: (4-1.2*(3.25-1 1//12+6 2//3: /(-0.1)^2=(0.25+0.75: (4-1.2*(13//6+6 2//3: /(-0.1)^2=(0.25+0.75: (4-1.2*(13//6+20//3: /(-0.1)^2=(0.25+0.75: (4-1.2*(13//6+1///(-0.1)^2=(0.25+0.75: (4-1.2*2.5))/(-0.1)^2=(0.25+0.75: (4-3))/(-0.1)^2=(0.25+0.75)/(-0.1)^2=1/(-0.1)^2=1/0.01=100// - черта дроби 

тогда будет так: √5/√6х -7 = 1/11  возведем обе части в квадрат5/(6x-7)=1/121  605=6x-7  36x=612x=102

t=a/p

t1=a/1,25p=4a/5p

t1: t=4: 5

ответ на 20%