Question

Question #8f3ba

Answer 1

`d/dx(x-1)=1`

Explanation:

`x(1-1/x)=x-1`

`d/dx(x-1)=1`

Answer 2

`1`

Explanation:

distribute the bracket.

`rArrx(1-1/x)=x-1`

differentiate using the `color(blue)"power rule"`

`color(orange)"Reminder " color(red)(bar(ul(|color(white)(2/2)color(black)(d/dx(ax^n)=nax^(n-1))color(white)(2/2)|)))`

`d/dx(x-1)=1-0=1`