# Solve: Integration as the Limit of a Sum

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Find by the method of summation the value of:

a. Integral (a - 0) sin nx dx

b. Integral (1/2 pi - 1/4 pi) cosec^2x dx

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#### Solution Summary

This solution is comprised of a detailed explanation for finding the integral by the method of summation of the value. It contains a step-by-step explanation which is provided within an attached Word document.

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