If 3 hens lay 10 eggs in 5 days, how many eggs will 3 hen lay in 20 days.
2 answers:
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Substitute x + 1 as x in the equation of the function:
Used
The Jacobian for this transformation is
with determinant , hence the area element becomes
Then the integral becomes
where is the unit circle,
so that
Now you could evaluate the integral as-is, but it's really much easier to do if we convert to polar coordinates.
Then