HOTS
(Higher Order Thinking Skills)
Program Studi Matematika IPA 2019
Persiapan Ujian Matematika IPA 2019
Jawaban Ujian Matematika IPA 2019
1. Diketahui f(x) = 5 + 2x dan g(x) = (x -1) / (x +4) dengan x ≠ -4. Jika (f o g) (k) = 2, maka k = ...
A. 2
B. 1
C. 0
D. -1
E. -2
Jawaban : E
(f o g) (x) = 5 + 2( (x -1) / (x +4) )
(f o g) (k) = 5 + 2( (k -1) / (k +4) )
2 = 5 + (2k - 2)/(k+4)
-3 = (2k - 2)/(k+4)
-3k -12 = 2k - 2
-5k = 10
k = -2
>> Soal 2
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