Use the trapezium rule with 4 equal strips to estimate .
Answer and explanation
Correct answer: C. 22
- Step 1: Strip width ; ordinates are . Step 2. Estimate . Step 3. . Answer: 22. Why not the others: 21.33 is the exact integral , not the estimate; 24 omits the factor on the end ordinates; 20 leaves out the last ordinate from the sum.
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