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Black Book Advanced Problems in MathematicsMathematicsApplication of Derivatives

For the equation e^ -x 1 + x = which of the following statement(s) is/are correct ?

Options

  1. AWhen (0, ) equation has 2 real and distinct roots
  2. BWhen (- , -e^2) equation has 2 real and distinct roots
  3. CWhen (0, ) equation has 1 real root
  4. DWhen (-e, 0) equation has no real root

Correct answer

B. When (- , -e^2) equation has 2 real and distinct roots

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