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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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


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

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

x =


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