CUET Preparation Today
CUET
General Aptitude Test
Quantitative Reasoning
Trigonometry
If $\sin \alpha+\sin \beta=\cos \alpha+\cos \beta=1$, then $\sin \alpha+\cos \alpha=$ ?
-1
0
1
2
We are given that ,
sin α + sin β = cos α + cos β = 1
Let us assume,
α= 90º and β = 0º
Now,
sin α + cos α
= sin 90º + cos 90º
= 1 + 0
= 1