1 3 6 4 7 2 5 8
(27-19)*4+18:3+(8+27):5-16
1 5/12b + 2 7/18b - 1 2/9b = 2 7/12b
1) 1 5/12b + 2 7/18b = 1 15/36b + 2 14/36b = 3 29/36b
2) 3 29/36b - 1 2/9b = 3 29/36b - 1 8/36b = 2 21/36b = 2 7/12b
(37+29-18):6+35:7×5=48: 6+35: 7×5=8+5×5=8+25=33
48:8+32-45:9+7×8=6+32-5+56=38-5+56=33+56=89
6×7×2-72:8+2×9=84-9+18=75+18=93
(8×8-5×4-2):7+5×6=42: 7+5×6=6+30=36
22,4(5/16х-3/7)-35,1(9/13х-4/9)=-45,9
224/10(5/16х-3/7)-351/10(9/13х-4/9)=-459/10
7х-48/5-243/10х+78/5=-459/10
7х-24,3х=-45,9+48/5-78/5
-17,3х=-45,9+96/10-156/10
-17,3х=-45,9+9,6-15,6
-17,3х=-51,9
х=-51,9÷(-17,3)
х=3
А)y' = 6/x²
б) y' = Cosx + 1/(4√x)
в) y' = (-Sinx - Cosx)/x²
г) y' = tgx + x/Сos²x
д) у' = 6(3x -4)^5 *3 = 18(3x - 4)^5