Page 11 - e-modul turunan fungsi aljabar
P. 11
CONTOH SOAL
Carilah f’(x) jika :
3
1. = − − 7
2
2
2. = 4 + 15
3
3. = 9 − 3 + 5
2
3
2
4. = 5 − + 16
Penyelesaian:
3
2
1. = − − 7
2
′
3
Misal : = − → = −3 3−1 = −3
′
2
= 7 → = 7.2 2−1 = 14
Jadi jika = − , maka
′
′
2
′
= − = −3 − 14
2
2. f (x) =4 + 15
′
2
Misal: = 4 → = 4.2 2−1 = 8
= 15 → = 15 = 15
′
0
′
′
′
Jadi jika = + , = + = 8 + 15
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