cosx derivative
-sinx
sinx derivative
cosx
tanx derivative
sec^2x
cotx derivative
-csc^2x
secx derivative
secxtanx
cscx derivative
-cscxcotx
product rule
f(x)g’(x)+g(x)f’(x)
quotient rule
g(x)f’(x)-f(x)g’(x)/g(x)^2
difference of cubes
(a-b)(a^2+ab+b^2)