$\"\"$

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Observe the table:

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The function values are

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$\"\"$ ,

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$\"\"$ and $\"\"$ .

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The number of subintervals are $\"\"$ .

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In this case $\"\"$ .

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Trapezoidal rule :

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$\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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The area of the land is $\"\"$ square meters.

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$\"\"$

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The area of the land is $\"\"$ square meters.