F [x] = e ^ ax LNX in the domain of definition is the range of increasing function to find a

F [x] = e ^ ax LNX in the domain of definition is the range of increasing function to find a

When a = 0, e ^ AX = 1, ln (x) is an increasing function in the domain of definition, so f (x) = e ^ ax, LNX is an increasing function
When A0, e ^ ax is an increasing function, ln (x) is an increasing function, so f (x) = e ^ ax, LNX is an increasing function
So a > = 0