Please help me answer questions # 19, 21, 22, and 25. Also provide steps to each equation. Thank you :)

Question 19 of 25 Attempt 6 Solve the equation sin (110) = -1 in radians on the interval 0 5 0 Solve the equation ms2 {59) = 1 on the interval 0 _: a Attempt 1 Find the sum of the sequence. 41 K= (Use symbolic notation and fractions where needed.) 41 41756 k=1 IncorrectQuestion 25 of 25 > A sequence is defined recursively. Write the first five terms of the sequence. an-1 a1 = 3; a, = n (Give your answer in the form of a comma-separated list. Express numbers in exact form. Use symbolic notation and fractions where needed.) The first five terms of a sequence