Question

Tentukan turunan pertama f'(10) dari f(2x + 1) = 6 - 4x .

Answer 1

Verified answer

◾ Materi : Turunan
◾ Sub materi : Turunan Fungsi
◾ Mapel : Matematika
◾ Keyword :

Jawab :
Diberikan f(2x+1) = 6 - 4x

misalkan :
u = 2x+1
2x = u-1
x = ½(u-1)

=> f(u) = 6 - 4(½(u-1))
f(u) = 6 - 2(u-1)
f(u) = 6 - 2u+2
f(u) = -2u + 8

Maka,
f'(u) = -2
f'(x) = -2

Untuk f'(10) = -2

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