CUET Preparation Today
If cos A + cos B + cos C = 3, then what is the value of sin A + sin B + sin C? |
1 2 0 -1 |
0 |
We are given that :- cos A + cos B + cos C = 3 Let us assume that , cos A = cos B = cos C = 1 It is possible if and only if A = B = C = 0º { cos 0º = 1 } Now, sinA + sinB + sinC = sin0º + sin0º + sin0º = 0 + 0 + 0 = 0 |
