1.x=0
5.y=0
Пошаговое объяснение:
1. y=x/3+ x^3/4
y=0
0=x/3+x^3/4
x/3+x^3/4=0
x/12×(4+3^2)=0
x/12=0
4+3^2=0
x=0
5.y=x-sin x
y=0-sin x
y=-0
Ответ:
(1; -7)
{y = -3x - 4
{4x -8(3x+4) = -52
{-20x - 32 = -52
{-20x = -20
{x = 1
{y = -3*1 - 4
{y = -7
310,440,610,700,990,1300,1500,1700,2000,2100,2700
240+2*(80+76)=552