Asked by Bob
∫3 at top and 2 at bottom
x/x^2+1 dx = ?
if you could show steps that would be great thanks
x/x^2+1 dx = ?
if you could show steps that would be great thanks
Answers
Bob
actually theres an integral sign. at the top of the sign theres a 3. At the bottom of it, theres a 2.
Reiny
You can type it this way:
∫(x/(x^2 + 1)) dx for x= 2 to 3
which is
[ (1/2) ln (x^2 + 1) ] from 2 to 3
= (1/2) ( ln 10 - ln 5)
or
(ln10 - ln5)/2
or
ln (10/5) / 2
= (1/2) ln 2
∫(x/(x^2 + 1)) dx for x= 2 to 3
which is
[ (1/2) ln (x^2 + 1) ] from 2 to 3
= (1/2) ( ln 10 - ln 5)
or
(ln10 - ln5)/2
or
ln (10/5) / 2
= (1/2) ln 2