This is a Test of Mathematics Solution Subjective 115 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance.
If , then show that
The given expression reduces to
Hence replacing in the required expression we get
- What is this topic: Trigonometry
- What are some of the associated concept: Change of Variables
- Where can learn these topics: Cheenta I.S.I. & C.M.I. course, discusses these topics in the ‘Trigonometry’ module.
- Book Suggestions: Trigonometry Volume I by S.L. Loney