G(x) = y " = (lnsinx) " = 1/sinx *(sinx) " =1/sinx*cosx = ctgx первая производная
G ' (x) = (ctgx) " = -1/sin^2x вторая производная
G(x) = y " = (lnsinx) " = 1/sinx *(sinx) " =1/sinx*cosx = ctgx первая производная
G ' (x) = (ctgx) " = -1/sin^2x вторая производная