Найдите минимум и максимум функции
F(x)=2x1+4x2

а) ( 9.8 * 8.2) + 23.7 = ( 6.2 * 8.2) + 55.1 = 80.36 + 23.7 + 50.84 + 55.1 =  210

    ( 9.8 * 0.7 ) + 23.7 + (6.2 * 0.7) + 55.1 =  6.86 + 23.7 +  4.34 + 55.1 =   90

 

б) ( 5.1 * 0.6 + 1.38) - 3.4 * 0.6  = 3.06 + 1.38 -  2.04 =  2.4

    ( 5.1 * 1.8 + 1.38) - 3.4 * 1.8 =  9.18 + 1.38 -  6.12 =  4.44

 

в)  44.2 * 0.9 - 15.7 * 0.9 + 23.5 = 39.78 -  14.13 + 23.5 =  49.15

     44.2 * 1.7 - 15.7 * 1.7 + 23.5 = 75.14 -  26.69 + 23.5 =  71.95

 

г)  0.056 * 3.7 - 0.037 =  0.2072 - 0.037 =  0.1702

     0.056 * 0.37 - 0.037 =  0.02072 - 0.037 = 0.01628

 

д)  3.45 * 7.6 - 3.44 * 7.6 + 0.024 = 26.22 - 26.144 + 0.024 = 0.1

     3.45 * 0.6 - 3.44 * 0.6 + 0.024 =  2.07 -  2.064 + 0.024 =  0.03

А)) 3/4: 3/20= 3/4• 20/3= 1/4• 20/1= 1/1• 5/1= 5.

Б)) 28/45: 12= 28/45• 1/12= 7/45• 1/3= 7/135;

В)) 1: 5/9= 1• 9/5= 9/5= 1 4/5.

Г)) 3 11/15: 7/12= (3•15+11)/15• 12/7= 56/15• 12/7= 8/15• 12/1= 8/5• 4/1= 32/5= 6 2/5.

Д)) 3 17/21: 16= (21•3+17)/21• 1/16= 80/21• 1/16= 5/21• 1/1= 5/21.

Е)) 4 5/18: 1 13/42= (18•4+5)/18: (42•1+13)/42= 77/18: 55/42= 77/18• 42/55= 7/18• 42/5= 7/3• 7/5= 49/15= 3 4/15.

Ж)) 5/9: 1 4/5= 5/9: (5•1+4)/5=5/9: 9/5= 5/9• 5/9= 25/49.

З)) 25 5/18: 5= (25•18+ 5)/18• 1/5= 450/18• 1/5= 90/18• 1/1= 90/18=5.