Please help me berapa jawabannya

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1.
Limit (x->2)  (x² -5x -6) sin 2(x-2) /(x² -x -2)
= lim(x->2) (x²-5x- 6) sin 2(x-2)/ (x-2)(x+1)
= lim (x-2) (x²-5x-6)/(x+1). sin 2(x-2)/(x-2)
= lim(x->2) (x²-5x-6)/(x+1). 2(x-2)/(x-2)
x= 2 --> (4-10-6)/(3) . (2) = (-12)/3 . 2 = -4  (2) = -8

2.
bola merah = 4
bola biru = 3
banyak bola = 7
diambil 2

P( 1 merah dan1 biru ) = 4c1  x 3c1 / (7c2) = 12/21 = 4/7