- #1
Jumpy Lee
- 20
- 0
Homework Statement
Find y' of the following
Homework Equations
y = (sec (2x))/(1 + tan (2x))
The Attempt at a Solution
y' = [(1 + tan (2x))(2 sec (2x) tan (2x)) - (sec (2x))(2 (sec (2x))^2)]/[(1 + tan (2x))^2]
i can not quite figure out how it reduces to:
y' = [(2 sec (2x))(tan (2x) - 1)]/[(1 + tan (2x))^2]