Question

помогите пожалуйста!!

Answer 1

3/(x-1)-6/(x^2-1)=(3(x^2-1)-6(x-1))/(x-1)(x^2-1)=(3x^2-3-6x+6)/(x-1)(x^2-1)=(3x^2-6x+3)/(x-1)(x^2-1)
(3*2999^2-6*2999+3)/(2999-1)(2999^2-1)=(3*8994001-17994+3)/(2998*8994000)=(26982003-17991)/26964012000=26964012/26964012000=0.001