[tex]\int \tan x \cdot dx + \int \tan 2y \cdot dy = 0[/tex](adsbygoogle = window.adsbygoogle || []).push({});

I get

[tex]1 = C\sqrt{\cos 2y} \cos x[/tex]

My init conditions were y(0) = pi/2 so I end up getting C as [itex]\sqrt{-1}[/itex] but the equation should be

[tex]-1 = \cos 2y \cos^2 x[/tex]

Where's my error?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Simple Integral

**Physics Forums | Science Articles, Homework Help, Discussion**