f(x)= 4(1-4x)^-1
misal
u=4
u'=0
v=1-4x
v'=-4
f'(x)=(u'v-v'u)/v²
=(0(1-4x)-(-4)4)/(1-4x)²
=(0+16)/(1-4x)²
=16/(1-4x)²
f'(5/4)=16/(1-4(5/4))²
=16/(1-5)²
=16/(-4)²
=16/16
=1
→ turunan ←
f(x) = 4/(1 - 4x) = 4(1 - 4x)^-1
f ' (x)
= -1 . 4(1 - 4x)^-2 . (-4)
= 16/(1 - 4x)²
f ' (5/4)
= 16 / (1 - 4.5/4)²
= 16 / (-4)²
= 1 ✔
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f(x)= 4(1-4x)^-1
misal
u=4
u'=0
v=1-4x
v'=-4
f'(x)=(u'v-v'u)/v²
=(0(1-4x)-(-4)4)/(1-4x)²
=(0+16)/(1-4x)²
=16/(1-4x)²
f'(5/4)=16/(1-4(5/4))²
=16/(1-5)²
=16/(-4)²
=16/16
=1
→ turunan ←
f(x) = 4/(1 - 4x) = 4(1 - 4x)^-1
f ' (x)
= -1 . 4(1 - 4x)^-2 . (-4)
= 16/(1 - 4x)²
f ' (5/4)
= 16 / (1 - 4.5/4)²
= 16 / (-4)²
= 1 ✔