RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 12 of Objective Questions

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12

Mark the tick against the correct answer in the following:

The value of is


To Find: The value of


Now, let x =


cos x =cos ()


Here ,range of principle value of cos is [0,]


x = [0,]


Hence for all values of x in range [0,] ,the value of


is


cos x =cos (2) (cos ()= cos () )


cos x =cos () (cos ()= cos )


x =

1

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