2 задание плиз очень надо
2. a) 1) (c-d)/c(c+d))-c/(d(d+c)= =(d(c-d)-c^2)/cd(c+d)= =(-(d-c)^2/(cd(c+d) 2) (d^2/(c(c^2-d^2))+(1/(c+d) =(d^2/(c(c-d)(c+d))+1/(c+d)= (d^2-cd+c^2)/(-c(d-c)(d+c)= (d-c)^2/(-c(d-c)(d+c)= =(d-c)/-c(d+c) 3) (d-c)^2*c(d+c)/ /(cd(c+d)*(d-c)=(d-c)/d