Area of a circle trigonometry, uses the coarea formula. Define a function formula_10 by formula_11. Note ρ is a Lipschitz function whose gradient is a unit vector formula_12 (almost everywhere). Let "D" be the disc formula_13 in formula_14. We will show that formula_15, where formula_16 is the two-dimensional Lebesgue measure in formula_14. We shall assume that the one-dimensional Hausdorff measure of the circle formula_18 is formula_19, the circumference of the circle of radius "r". (This can be taken as the definition of circumference.) Then, by the coarea formula, Similar to the onion proof outlined above, we could exploit calculus in a different way in
A Fish Called Selma Guy", in order to get a better representation of his performance. Throughout "A Fish Called Selma", it is hinted that Troy engages in strange sexual activity. The writers initially did not know what the "unsavory" sexual preference would be, but eventually decided on a fish fetish, a suggestion from executive producer James L. Brooks, since it was "so perverted and strange, that it was over the top". At the episode's table reading, an attendee exclaimed that the line, "from now on she's smoking for two" has "got to go" from the script; however, her request was denied. On the walls