Question

Calculați media aritmetică a numerelor: in poza ​

Answer 1

Răspuns:

Explicație pas cu pas:

x = 6/5 * 1/2√3 *1/√27 + 1/5

= 6/10√81 + 1/5

= 3/5*9 + 1/5 = 1/15 + 1/5 = 1/15 + 3/15 = 4/15

y = -1/√4 - 2/√9 + 5/√16

= -1/2 - 2/3 + 5/4 = -6/12 - 8/12 + 15/12 = -1/12

Ma = (x + y)/2 = (4/15 - 1/12)/2 = (16/60 - 5/60)/2 = (9/60)/2 = (3/20)/2 = 3/40