Basic Derivatives
d/dx (sinx)
cosx
The derivative of any constant
0
d/dx (cosx)
-sinx
The derivative of x
1
d/dx (secx)
secxtanx
The quotient rule
lodehi-hidelo over lolo
d/dx (cotx)
-csc2x
The product rule
f(x)g'(x)+g(x)f'(x)
Find the derivative of f(x)= 19x+tanx-10000000
19+sec2x
Find the derivative of 1/sinx
-cscxcotx
d/dx (tanx)
sec2x
CALC BFF
y-y1=m(x-x1)