- #1
Chas3down
- 60
- 0
Homework Statement
d2y/dx2 = 7sec^2(pix/4)tan(pix/4)
y'(1)=0
y(1)=5
Homework Equations
The Attempt at a Solution
dy/dx = 14/pi sec^2(pix/4)-28/pi
y = 56tan(pix/4)/pi^2-28x/pi+5-56/pi^2+28/pi
Not sure where I went wrong, but I checked on my calc and it wasn't equal.