Q) if $\displaystyle sin \alpha =12/13 , \alpha $ is in the first quadrant ;$\displaystyle sin \beta =7/25 , \beta $ in the first quadrants.

Finda)$\displaystyle sin (\alpha+\beta) $b)$\displaystyle cos(\alpha+\beta) $c)the quadrant containing$\displaystyle (\alpha +\beta)$

Please answer in Steps..

Thank you