Finding the lower and upper Riemann Sums
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I'm having a hard time figuring this questions out. I've looked on google and on the book and so far I haven't gotten a good explanation for this questions. I know they aren't hard and are probably easy but I've haven't gotten a good explanation. Find the lower and Upper Riemann Sums $L(P)$ and $U(P)$ for the function $f(x)=x^2$ on the interval $[0,1]$ using the partition $P={0,frac12, frac34,1}$ Given that $int_1^3 f(x)~dx=4$ and $int_1^5 f(x)~dx=7$, find $int_3^5 f(x)~dx$. Given that $int_1^3 f(x)~dx=4$ and $int_1^3 g(x)~dx=2$, find $int_1^3 3f(x)-g(x)~dx$.
definite-integrals riemann-sum
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