Question
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Approximate the integral below using
a left hand sum with 6 rectangles.
Round your final answer to the
nearest thousandth.

Ask by Reid Beck. in the United States
Mar 22,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

The left-hand sum approximation of the integral is approximately 3.432.

Solution

Calculate or simplify the expression .
Evaluate the integral by following steps:
  • step0: Evaluate using formulas and rules:
  • step1: Simplify:
  • step2: Evaluate the integral:
  • step3: Use properties of integrals:
  • step4: Evaluate the integral:
  • step5: Evaluate the integral:
  • step6: Return the limits:
  • step7: Calculate the value:
  • step8: Simplify:

    To approximate the integral using a left hand sum with 6 rectangles, we need to divide the interval into 6 equal subintervals. The width of each subinterval is .
The left hand sum is calculated by multiplying the function value at the left endpoint of each subinterval by the width of the subinterval and summing these values.
Let’s calculate the left hand sum for the given integral.
Calculate the value by following steps:
  • step0: Calculate:
  • step1: Divide the terms:
  • step2: Simplify the root:
  • step3: Divide the terms:
  • step4: Multiply:
  • step5: Subtract the numbers:
  • step6: Remove the parentheses:
  • step7: Simplify the root:
  • step8: Divide the numbers:
  • step9: Multiply the numbers:
  • step10: Subtract the numbers:
  • step11: Multiply:
  • step12: Subtract the numbers:
  • step13: Simplify the root:
  • step14: Divide the numbers:
  • step15: Multiply the numbers:
  • step16: Subtract the numbers:
  • step17: Multiply:
  • step18: Subtract the numbers:
  • step19: Simplify the root:
  • step20: Divide the numbers:
  • step21: Multiply the numbers:
  • step22: Subtract the numbers:
  • step23: Multiply the numbers:
  • step24: Multiply the numbers:
  • step25: Multiply the numbers:
  • step26: Multiply the numbers:
  • step27: Multiply the numbers:
  • step28: Multiply the numbers:
  • step29: Reduce fractions to a common denominator:
  • step30: Multiply the terms:
  • step31: Multiply the terms:
  • step32: Multiply the terms:
  • step33: Multiply the terms:
  • step34: Multiply the terms:
  • step35: Multiply the numbers:
  • step36: Transform the expression:
  • step37: Multiply the terms:
  • step38: Multiply the terms:
  • step39: Multiply the terms:
  • step40: Multiply the terms:
  • step41: Multiply the terms:
  • step42: Multiply the terms:
  • step43: Subtract the numbers:
  • step44: Rewrite the expression:
  • step45: Reduce the fraction:

    The left hand sum approximation of the integral using 6 rectangles is approximately 3.431518.

Answered by UpStudy AI and reviewed by a Professional Tutor

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Simplify this solution

Beyond the Answer

To approximate the integral using a left-hand sum with 6 rectangles, we first need to find the width of each rectangle. The interval from 1 to 4 has a width of . Dividing this by 6 gives a rectangle width .
Next, we find the left endpoints of the rectangles. The x-values will be and .
Now, we calculate the function values at these points:
Finally, we compute the left-hand sum:
Calculating the sum inside the parentheses:
Now, multiply by :
Rounding to the nearest thousandth, we get:

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