(Solved): need help for both please  - Decimal approximations are not allowed for this problem. - Enter y ...

- Decimal approximations are not allowed for this problem. - Enter your answer in exact form. - Use "sqrt()" to represent \( \sqrt{ } \). - If any values are undefined, enter "undefined" as your answer. Given that \( \alpha \) is in quadrant 4 and \( \tan (\alpha)=\frac{-3}{8} \), and also given that \( \beta \) is in quadrant 1 and \( \sin (\beta)=\frac{5}{9} \), give an exact answer for the following: a. \( \sin (\alpha+\beta)= \) b. \( \cos (\alpha+\beta)= \) c. \( \tan (\alpha+\beta)= \) - Decimal approximations are not allowed for this problem. - Enter your answer in exact form. - Use "sqrit()" to represent \( \sqrt{ } \). Given that \( \alpha \) is in quadrant 4 and \( \cos (\alpha)=\frac{5}{6} \), and also given that \( \beta \) is in quadrant 4 and \( \sin (\beta)=\frac{-3}{4} \), give an exact answer for the following: a. \( \sin (\alpha-\beta)= \) b. \( \cos (\alpha-\beta)= \) c. \( \tan (\alpha-\beta)= \)