Question #7f8b3

2 Answers
Oct 21, 2017

The answer is 1/5.

Explanation:

f'(x)=1/5* dx/dx+x *d(1/5)/dx+d(4/15)/dx

The above is using product rule for (1/5)(x).
And we know that differentiating a constant is 0, so we can get the following:

f'(x)=1/5*1+x*0+0
=1/5

It's the answer!
Hope it can help you :)

Oct 21, 2017

f'(x)=1/5

Explanation:

The explanation is this:
f'(x)=1/5*1 x^(1-1)+4/15*0x^(0-1)
f'(x)=1/5x^0+0*x^-1
f'(x)=1/5*1+0
f'(x)=1/5

For more info (https://www.mathsisfun.com/calculus/derivatives-rules.html)