I need to integrate 7tan^2(x)sec(x)dx I get the answer 7((1/2)(1/cos(x)tan(x))-1/2ln((1/cos(x))+tan(x))+C The question is from WebAssign and I can't...

Hi! I need to integrate 7tan^2(x)sec(x)dx

I get the answer 7((1/2)(1/cos(x)tan(x))-1/2ln((1/cos(x))+tan(x))+C

The question is from WebAssign and I can't seem to figure out where I've gone wrong. I'm using the identity and sum rule.

Sorry I'm not very good at typing out the answer through text.