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Wataru
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Longest streak: 65 days
Wataru
I am originally from Japan, and I currently teach at Providence College.
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karma
· Providence, RI USA
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@wishizuk Wataru commented Dear Derek:
It is because 2t is the derivative of (1+t^2). You can take the 6 out, then use the u-substitution, which will give you the same answer. on How do you find the length of the curve #x=1+3t^2#, #y=4+2t^3#, where #0<=t<=1# ? -
@wishizuk Wataru commented Dear Kari:
I posted a different approach (by substitution), which might make more sense to you. on What is the antiderivative of #tan(x)#? -
@wishizuk Wataru wrote an answer to What is the antiderivative of #tan(x)#? .
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@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?
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@wishizuk Wataru commented on How can I find the derivative of #y=e^x# from first principles?
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@wishizuk Wataru wrote an answer to How do you use the binomial series to expand #f(x)= 1/((1+x)^2)#? .
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@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)? .
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