Solucionario Calculo Una Variable Thomas Finney Edicion 9 179 -

Maya wrote the result in bold, underlined it, and added a small smiley face next to it—her personal signature of triumph. The next morning, the professor walked into the seminar room, a stack of papers in his hand. He asked the class to volunteer a solution for Exercise 179. Maya’s hand rose, heart thudding like a metronome.

Discarding the trivial solution (x = 0) (which gave zero volume), she solved Maya wrote the result in bold, underlined it,

[ V(x) = 2x^2 \bigl(R^2 - \tfrac{x^2}{2}\bigr)^{1/2}. ] Maya wrote the result in bold