1, 2, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 41, 42, 51, 52, 61, 62, 71, 72, 81, 82, 91, 92
1) 130 см; 350 см; 24 см; 1.5 см
2) 0,12 дм; 1,42 дм; 247 дм; 6,8 дм
51815:(p-975)=1205
P=51815:1205=975
P=43
P=975+43
P=1018
Ровно=cos^2x-sin^2x+sin^2x=0.5
cos^2x=0.5