RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 7 D of Exercise 4C

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7 D

Prove that:


To Prove:


Formula Used:


Proof:


LHS … (1)


Let



Therefore … (2)


From the figure,


… (3)


From (2) and (3),



Substituting in (1), we get


LHS







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