Find the first derivative for the following: 1) f(x) = x In 2x 2) [x2 (2x + 1)] f(x) = In 5-x 3) y = 2.53x 4) y=arccsc ex 5) y = x log3 x - 1 6) y = sec (x+3) 7) g(x) = (x+x) cos x 8) f(x) = log(x+x+1) 9) x-1 10) f(x) = y = t +1 x+1