Need help on this, keep getting the wrong answer according to back of the book. Assignment is not due just reg hw. If done right ill give you a super rating!

5. Find the following derivatives (3 marks cach) a. g(s) = 2els+1, find g"(s)= b. f(x,y) = x' + 2xy - y' - vx.fmy(x,y) = c. zex +(x - y) , find- dyerty