Page 25 - E-MODULE TURUNAN FUNGSI ALJABAR

E-MODULE Kelas XI
e

5 −4
4. ( ) =
5 +4
Jawab

Misalkan = 5 − 4 = 5
′
′
= 5 + 4 = 5

′
. − . ′
′( ) =
2
(5)(5 +4)−(5 −4)(5)
′( ) =
(5 +4) 2

25 +20− 25 + 20)(5)
′( ) =
(5 +4) 2
40
′( ) =
(5 +4) 2

40
′(0) =
(5(0)+4) 2
40
′( ) =
16

5
′( ) =
2

5. ( ) = 2 + + 7 + 6
2
5
Jawab

( ) = 2 + + 7 + 6
2
5
4
′( ) = 10 + 2 + 7
′′( ) = 40 + 2
3

18 | T u r u n a n F u n g s i A l j a b a r