bundawsoaniewolf bundawsoaniewolf

04-11-2016
Mathematics

Answered

Find r(t) if r'(t)=ti+e^tj+te^tk and r(0)=i+j+k

Verified Answer :

nobillionaireNobley nobillionaireNobley

13-11-2016

r(t) = integral of r'(t) = integral of ti + e^tj + te^tk = 1/2t^2i + e^tj + (te^t - e^t)k + c
r(0) = j - k + c = i + j + k
c = i + 2k
Therefore, r(t) = (1/2t^2 + 1)i + e^tj + (te^t - e^t + 2)k

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