What is the integration rule for a constant y^2?

[killerfish]

Hi,

Please help me on this. I do not how to start on this integration, so i simply apply basic integration rule. Usually, there is a formulas sheet for me to convert this alike question to trigo form(after integrate) but this one seem different.

edited: y^2 is const

The Attempt at a Solution

Thanks

 

[Cyosis]

Use the substitution u=x^2+y^2.

 

[killerfish]

sorry there is an edit.

 

[Cyosis]

It was already clear that y is a constant. Post 2 still holds.

 

[killerfish]

It was already clear that y is a constant. Post 2 still holds.

I think i got it. Thanks for the hint. I guess I really need more practice.

 

[Cyosis]

Correct.