Barrons AP Calculus

= x −   ln(ex   −   1),

then

(E) Use formula (18):   

(A) Use formulas    (13),   (11),   and (9):

(D) By  the Quotient    Rule,

(D) Since   y =     ln  (x^2    +   1),

(C)

(A) Since   y =     csc 2x, y′ =    (−csc   2x  cot 2x  ·   2).