JEE Main 2026 Mathematics question
Not in JEE Main syllabus
If , then n(S) is equal to .
Answer: 19
Solution
Using product-to-sum, the equation reduces to cos(3θ/2)=cos(21θ/2), giving θ=2kπ/9 (9 solutions in
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account