Explain solution RD Sharma class 12 chapter Increasing and Decreasing Functions exercise 16.2 question 4 maths
f(x) is increasing in interval R.
We have to show that f(x) is increasing R.
For f(x) to be increasing we must have f’(x)>0.
On differentiating both sides w.r.t x we get
For f(x) to be increasing, we must have
Since the value of e lies between 2 and 3.
So, whatever be the power of e (i.e, x is domain R) will greater than zero.
Hence f(x) is increase in interval R.