RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 4 D of Exercise 4C

Listen NCERT Audio Books to boost your productivity and retention power by 2X.

4 D

Prove that:


To Prove:


Formula Used:


1)


2) cosec2 A = 1 + cot2 A


3)


4)


Proof:


LHS


Let x = cot A


LHS


= cot-1(cosec A – cot A)







From (2), A = cot-1 x,



= RHS


Therefore, LHS = RHS


Hence proved.


Chapter Exercises

More Exercise Questions