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Question

The number of real roots of equation logex+ex=0
  1. 0 (Zero)
  2. 1
  3. 2
  4. 3


Solution

The correct option is B 1
logex+ex=0     (1)
logex=ex

We can simply draw the graphs of y=logex and y=ex and their number of intersections with each other will give us the number of real roots of the equation (1)

From the graph, there is only one root of the given equation.
 

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