Jim L.

asked • 02/16/21

Need help with math ASAP

Let f be the function defined by f(x)=4/(x^2).

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Approximate the value of 12(upper limit)∫1(lower limit) f(x) dx using a left Riemann sum with the subintervals [1,4], [4,8], and [8,12].


Find the value of 12∫1 f(x) dx.


Find the value of ∞∫1 f(x) dx or explain why it does not exist.


Find the value of 12∫1 [f(x)⋅lnx] dx. Show the work.

1 Expert Answer

By:

Yefim S. answered • 02/17/21

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5 (20)

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