1. ## last derivative

$

f(x) = cos(sin(cos x))
$

so far ive gotten to here (below) but now im stuck

$

f'(x) = -sin(sin(cos x)) \cdot cos(cos x) \cdot (-sin x)
$

last one <3 haha

2. $f'(x) = \sin[\sin(\cos{x})] \cdot \cos(\cos{x}) \cdot \sin{x}
$

double negative factors yield a positive ... that's about it.