Решить на производных 1. f(x)=x^5+tg8x f(x)=6x^3-cos5x f(x)= -6√5+x 2. y=8x+x^2, x0=-1 3. f(x)=1/3x^3-3.5x^2+6x-20 f`(x)=0 4.y=x^3-1/2+x^3 5. a) f(x)= -sin2x-cos2x b)f(x)=x^2+2cosx c)f(x)=x^3-tg4x d) f(x)=2ctg3x+0.5x^4 6. f`(x)> 0 a) f(x)=sinx-x b) f(x)=cosx+x/2