CPM Homework Help : CALC Problem 6-49

Differentiate the following expressions.

$\frac { d } { d z } [ 2 z ^ { 2 } \operatorname { sec } ( z ^ { 3 } - 2 ) ]$
$\frac { d } { d t } [ \operatorname { sin } ( \operatorname { tan } ^ { 2 } ( 3 t - 5 ) ) ]$
$\frac { d } { d x } [ x \cdot 2 ^ { x } \operatorname { cos }( x )]$

Answer (b):

$6\operatorname{cos}(\operatorname{tan}^2(3t−5)) \operatorname{tan}(3t−5)\operatorname{sec}^2(3t−5)$