2, 3, 4, 5, 6, 7, 8 всего 7 чисел
Объяснение:
(х/(х+1) +1)•(1+х)/(2х-1)=(х+х+1)/(х+1) •(1+х)/(2х-1)=(2х+1)/(2х-1)
(4х^2 -4х)/(х+3) ÷(2х-2)=4х(х-1)/(х+3) •1/(2•(х-1))=2х/(х+3)=2•(-1)/(-1+3)=-2/2=-1
0,8*(-10)^4+5*(-10)^2-97 =0,8*10000+5*100-97=8000+500-97=8500-97=8403
Tg(a- 5п/2) = - tg(5П/2-a) = - tg(П/2 - a) = - ctg(a) = -
А(6,0,0)+в(2,2,-2)
3а+2в=(8,2,-2)