Loading...
Wataru
has helped students
times in
Activity
Summary of contribution activity by day
Longest streak: 65 days
Wataru
I am originally from Japan, and I currently teach at Providence College.
204K
karma
· Providence, RI USA
Activity
1192 Answers
264 Edits
-
@wishizuk Wataru commented Dear Josh:
If a_n = (x-4)^{2n} / 3^n, then a_{n+1} = (x-4)^{2(n+1)} / 3^{n+1}. on What is the radius of convergence of the series #sum_(n=0)^oo(x-4)^(2n)/3^n#? -
@wishizuk Wataru commented Dear Bao An N.:
Because infinity * 0 is inconclusive. on Find the limit as x approaches infinity of #xsin(1/x)#? -
@wishizuk Wataru commented I counted ties, losses, and wins in that order, but you can do it in any order. on In how many ways can the season end with 8 wins, 4 losses, and 2 tie is a college football team plays 14 games?
-
@wishizuk Wataru commented on How can I find the derivative of #y=e^x# from first principles?
-
@wishizuk Wataru wrote an answer to How do you use the binomial series to expand #f(x)= 1/((1+x)^2)#? .
-
@wishizuk Wataru updated the answer to How do you find the equation of the tangent line to the curve #y=x^2e^-x# at (1, 1/e)? .
-
@wishizuk Wataru commented Dear Ratnaker Mehta:
Thanks! I will fix it. on How do you find the equation of the tangent line to the curve #y=x^2e^-x# at (1, 1/e)? -
@wishizuk Wataru wrote an answer to How do you find the equation of the tangent line to the curve #y=x^2e^-x# at (1, 1/e)? .
-
@wishizuk Wataru updated the answer to Find the length of the parametric curve #x = e^t + e^-t, y = 5 - 2t# from #t = 0 to t = 1#? .
- Show more activity
Loading...
Loading...
Loading...