Question

Question #7f8b3

Answer 1

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 :)

Answer 2

`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)