- #1

al_ex

- 3

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- Homework Statement
- surface double integral, sphere, cardioid

- Relevant Equations
- how do I plan the problem?

Hi I´d like a suggestion about a surface double integral. If I have a sphere x^2+y^2+z^2=4 is on the top of a cardioid r=1-cosθ. The problem is when I solve the integral I got a inverse sine when the answer is a natural logarithm (ln)