Can someone help with 1 and 3? Thanks!

Worksheet for Sections 3.4 and 3.5 1. In {a} and [b], nd the rst and second derivatives of the fimction. {a} at} 2 lnfcos 3:} [b] t] 2 ln{cos 3'\") 2. [like Exercise 3.4.71} Let 33;} = sint, where t is in degrees, and let at} 2 sin 1', where x is in radians. Recall that t degrees = t radians. {a} Draw the graphs of a and f in the same gure, with domain [i], 130] for s and domain [13,211'] {radians} for 3'. What is the difference in the graphs? Is one graph easier to analyse than the other? Explain your answers. {b} Since t degrees 2 t radians, it follows that a{t} in degrees 2 sin[t] in radians. Find both 311'} and f'(a:}, using the derivative of the sine function in the textbook and the Chain Rule where necessary. Would a' be easier to use than 1\