Recent content by MillerL7

The following sum Sqrt(5+5/n) * (5/n) + Sqrt(5 +10/n) * (5/n)... is a right Riemann sum for the definite integral a=3 and b= 8 what does f(x) equal? I got a and b but could not find f(x) It is also a Riemann sum for the definite integral Sqrt(5+5/n) * (5/n) (same as above)...

I tried that formula and got it incorrect...

Consider the Integral: a=0 b=1 (x^2)(sqrt(9x+8))dx Does u=(9x+8) ? can we factor out the x^2? We have to give the value that the definite integral is

So, I ended up with 1/4lnabs((e^4x)^(2))+9) and got it wrong, what am I doing incorrectly?

The integral of [sin^3*(13x)*cos^8*(13x)]dx I think u=sin^3 so du/dx=cos^3 du=cos^3dx but then I am really not sure if that is correct, the trig functions confuse me a bit. Please help me, thank you!

thank you! that is correct, I understand that one now

I always get confused when taking antiderivatives of fractions...how do I go about doing that?

correction on problem the second part is the one that we need help on...thank you!

Evaluate the indefinite integral: [(e^(4x))/(e^(8x))+9]dx -I think that u=e^(2x) so then du=e^(2x)dx then the answer would end up being [(e^(4x)+9)/(-1)]^(-1) but it was incorrect; I think that my u might be wrong and that's where the problem is, but I am not sure. Please help, thank...

The velocity function is v(t)=t^2 -5t + 6 for a particle moving along a line. Find the displacement traveled by the particle during the time interval [0,5]. What is the displacement? What is the distance traveled? I think that the information should look like this: (1)(1^2 -5(1)...

A population of cattle is increasing at a rate of 200 + 10t per year, where t is measured in years. By how much does the population increase between the 4th and 6th years. What is the total increase? I tried using integration, and have b=6 and a=4, with interval of 2, but it was wrong...

A population of cattle is increasing at a rate of 200 + 10t per year, where t is measured in years. By how much does the population increase between the 4th and 6th years. What is the total increase? I tried doing integration and take it from the right hand site, but that was...

I attached just one question...My tutor and the TA could not figure it out or help me get started on it...can someone help me get started? Thank you so much!