NTA Abhyas JEE Main2020MathematicsIndefinite IntegrationPractice
If the integral I = ∫ e 5 ln x x 6 + 1 - 1 d x = ln x 6 + 1 + C , (where, C is the constant of integration) then the value of 1 λ is
Correct answer
6
Step-by-step solution
The integral I = ∫ e 5 ln x x 6 + 1 - 1 d x I = ∫ e ln x 5 x 6 + 1 d x = ∫ x 5 x 6 + 1 d x = 1 6 ∫ 6 x 5 d x x 6 + 1 Put x 6 + 1 = t 6 x 5 d x = d t ⇒ I = 1 6 ∫ d t t = 1 6 ln t + C ⇒ I = 1 6 ln x 6 + 1 + C ⇒ λ = 1 6 ⇒ 1 λ = 6