d2y/dx2=sec 2x, y(0)=0 and y'(0)=1

so the first deritive is tanx+1

because tan0+c=1

c=1

for the orinal equation does it go back to sec 2x+c?

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- Sep 8th 2009, 08:48 PMgenlovesmusic09d2y/dx2?
d2y/dx2=sec 2x, y(0)=0 and y'(0)=1

so the first deritive is tanx+1

because tan0+c=1

c=1

for the orinal equation does it go back to sec 2x+c?

- Sep 8th 2009, 08:51 PMpickslides

Can you take it from here? - Sep 8th 2009, 09:01 PMgenlovesmusic09
i know that the antiderivative of sinx/cosx is -ln cosx +c but wher does the +1 come in?

- Sep 9th 2009, 02:03 PMpickslides
- Sep 9th 2009, 03:00 PMgenlovesmusic09
thanks! i forgot you can separate!