RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 14 of MCQ

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Choose the correct answer

If , , then α – β =

We are given with,

We need to find the value of α – β.


Using the property of inverse trigonometry,


Simplifying it further,

The term (2x2 + 2y2 – 2xy) gets cancelled from numerator and denominator.

Using the value of inverse trigonometry,

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