Common Calculus Mistakes
Area under a curve
Find the exact area under the curve y = 8 - x2 and above the x-axis.
Find the mistake:
(Roll the mouse over the math to see a hint in red)
(Roll the mouse over the area above to see the correction in blue)
The mistake was to approximate √8 by 2.82. The instructions were to find the exact value of the area, so the problem should be worked out with the exact values. This problem is one for which your calculator should be left turned off.
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