1) 3 в 7 степени = 3*3*3*3*3*3*3 = 6561
3 во 2 степени = 3*3 = 9
3 в 3 степени = 3*3*3 = 27
2) 6а+3+3а-9-2а(во 2 стп.) = 9а-6-2а(во 2 стп.)
9*(-1) -6 -2*(-1) (во 2 стп.)
1) (2*(-1)) = -2*(-2) = 4
9*(-1) = -9
-9-6+4 = -11
3) 9+8х-14 = 7
9+8х = 7+14
9+8х = 21
8х = 21-9
8х = 12
х = 12:8
х = 1,5
#1
y ' = (2/3*x^3 - 3x)' = 2/3*3x^2 - 3*1 = 2x^2 - 3
#2
y ' = (2 - 1/2*x)' = 0 - 1/2*1 = - 1/2
#3
y' = (x^4 - 2x^2 + pi)' = 4x^3 - 4x
cos216*cos126+sin216*sin126=cos(216-126)=cos90=0
Y=x y=x y=x y=x y=x y=2
y=3x-4 x=3x-4 x-3x=-4 -2x=-4 x=(-4)/(-2) x=2