Mathematics Part-II

Book: Mathematics Part-II

Chapter: 7. Integrals

Subject: Maths - Class 12th

Q. No. 12 of Exercise 7.9

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12

Evaluate

Let I =

cos 2x = 2cos2x – 1


cos2x =


putting the value cos2x in I


I = []


I =


I = = π/4


= π/4


14

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