RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 12 of Exercise 4B

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Find the principal value of each of the following :

[Formula: cos(2π – x) = cos (x), as cos has a positive vaule in the fourth quadrant. ]

= [Formula: cos-1(cos x) = x


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