Question

функции y=f(x) и y=g(x) заданы таблицей​

Answer 1

1)фи(x) = f(x)+g(x)

фи(3) = f(3)+g(3) = 1+9 = 10

фи(1) = f(1)+f(1) = 5+1 = 6

2)r(x) = f(x)•g(x)

r(2) = f(2)•g(2) = 3•4 = 12

r(4) = f(4)•g(4) = -1•16 = -16