Secθ
1/cosθ
Cscθ
1/sinθ
Cotθ
1/tanθ
Sin(2a)
2sin(a)cos(a)
Cos(2a)
Cos^2a-sin^2a
Cos^2(x/2)
(1+cosx) / 2
Sin^2(x/2)
(1-cosx) / 2
Limit Definitions of the Derivative
Product Rule
Quotient Rule
Chain Rule
d/dx sinx
cosx
d/dx cosx
-sinx
d/dx tanx
sec^2x
d/dx cotx
-csc^2x
d/dx secx
tanxsecx
d/dx cscx
-cotxcscx
d/dx 1/x
-1/x^2
d/dx √ x
1/2√ x
d/dx e^x
e^x
d/dx x^n
nx^n-1
d/dx b^x
ln(b)b^x
d/dx lnu
u’/u