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lim x->1 (x+6) (x-1) per (x-5)(x-1)
(x-1) dicoret
jadi (1+6) per (1-5) = 7 per 4
(x+6)(x-1)/(x-1)(x-5) tinggal coret jadi x+6/x-5
masukin lim 1 jadi 1+6/1-5
= -7/4
cara 2 pake turunan
2x+5/2x-6
masukin lim 1 jadi 2(1) + 5/ 2(1)-6
= 7/-4 atau -7/4