Ответы и объяснения

2013-10-25T00:12:31+04:00
=( (-3x^5-x^2)'(2-5x^2)-(2-5x^2)'(-3x^5-x^2) )/(2-5x^2)^2=
=( (-15x^4-2x)(2-5x^2)+10x(-3x^5-x^2) )/(2-5x^2)^2=
=(-30x^4+75x^6-4x+10x^3-30x^6-10x^3)/(4-20x^2+25x^4)=
=(36x^6-30x^4-4X)/(25x^4-20x^2+4).
2013-10-25T04:31:30+04:00
Y ' =((-3x^5-x^2)' (2-5x^2)-(2-5x^2)' (-3x^5-x^2)) /(2-5x^2)^2=((-15x^4-2x)((2-5x^2)+10x(-3x^5-x^2)) /(2-5x^2)^2=