Cut and paste the last input into a new equation window. Highlight and execute the square root option from the ribbon. The Simplify option gives the answer: Use the result to set-up an integral. The Simplify command yields the answer 21/2. Again, note that the set-up of the problem using initially an integral symbol is too complicated. Simplify yields a more pleasing looking set-up. Unfortunately, the simplification under the radical is needed before the introduction of an integral command. The output is: Example 3: Find the surface area generated by revolving the curve about the y-axis. The curve is , , (Thomas and Finney, 1996, p. 749). Answer: Consider: Simplify and Factor the outputs:
Cut and paste the last input into a new equation window. Highlight and execute the square root option from the ribbon. The Simplify option gives the answer: Use the result to set-up an integral. The Simplify command yields the answer 21/2. Again, note that the set-up of the problem using initially an integral symbol is too complicated. Simplify yields a more pleasing looking set-up. Unfortunately, the simplification under the radical is needed before the introduction of an integral command. The output is: Example 3: Find the surface area generated by revolving the curve about the y-axis. The curve is , , (Thomas and Finney, 1996, p. 749). Answer: Consider: Simplify and Factor the outputs:
multivarcalcProblems.docx