Please teach whether solutions are correct If not, please teach how to fix

5. Let "(1) =. Find frid - 3 Fe f ( z $ 3s in ( - 3+ ) = (3) ( - 5 ) ( - Cos ( 3+) ) + ( 2 = 103 (- 3 + ) t (3 thorefore, ( 7 ( t ) - ( 2 + + 3 t ) it ( s est ) it ( cos ( 3+ ) ) K + C +s tit , be - se ( os ( 3 t ) > + 2 16. Let r(1) = .Find a parametric equation of the line tangent to r(t) at the point (-1, 3, -3.466). x (1 ) = -1+81 V (1 ) = 3+5+4 +8+3 =(1) = -3.466 -5 Since point (- 1, 3, - 3. 466), at ( + in(its ) t Thereture V = ( - 1 , 3 , - 3, 46 6 ) +