Răspunsuri

2014-04-27T22:14:57+03:00
!x-3!*!x-4!*!-1!≥0
!x-3!=x-3 daca x≥3 si -(x-3) daca x<3
!x-4!=x-4 daca x≥4 si -(x-4) daca x<4
!-1!=1
sunt 4 cazuri 1.(x-3)(x-4)≥0, x∈(-α,3]U[4,+α)
                    2.(-x+3)(x-4)≥0, x∈[3,4]
                    3.(x-3)(-x+4)≥0, x∈[3,4]
                    4.(-x+3)(-x+4)≥0, x∈(-α, 3]U[4, +α), UNDE !-modul, α-infinit
sper ca am inteles bine ce ai scris acolo