Question

If cos α + cos β = 1/2 and sin α + sin β = 1/3.

| Column – I | Column - II |
| (A) cos (α +β)/2 | (p) ± √13/12 |
| (B) cos (α -β)/2 | (q) 2/3 |
| (C) tan (α +β)/2 | (r) ± 3/√13 |
| (C) tan (α -β)/2 | (*) ± √131/13 |

Answer 1

*Correct option (A-r, B-p, C-q, D-)**

Explanation: