Consider the region enclosed by the x-axis and the graph of y= 3/(2x-1) from x=1 to x=3. Find the volume of the solid formed when this region is rotated 360 degrees around the x-axis.

Question

anonymous · Answer

Im trying the washer method but im having a hard time finding where I should use u substitution

welshfella · Answer

What do you get for the integral.

anonymous · Answer

$$\int\limits_{1}^{3} (3/(2x-1))^2 dx$$

anonymous · Answer

i couldnt put the pi in there for some reason

anonymous · Answer

so should i use everything inside the parentheses as u or should i only use the denominator of the fraction?

welshfella · Answer

You could put 9 outside the, integral sign

anonymous · Answer

so square everything and then try to do u substitution?

welshfella · Answer

No need for a substitution

anonymous · Answer

|dw:1427668330237:dw|