Question
Fri December 16, 2011 By: Snehal Mehrotra

Find whether f(x)=1/x is strictly increasing or a strictly decreasing function.

Expert Reply
Fri December 16, 2011
To ceck whether f(x)=1/x is strictly increasing or decreasing function.
We calculate the first derivative of f(x),i.e f'(x)
Differentiating f(x),we get f'(x)=-1/x2
Since x2>0 for all x not equal to zero.
Thus,f'(x)<0 for all x not equal to zero.
And hence f(x) is strictly decreasing function.
Wed September 27, 2017

test123

Home Work Help