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OpenStudy (anonymous):
f(x,y) = x+2y. Evaluate scalar line integral over given path x. x(t)=(cost,sint), 0
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OpenStudy (anonymous):
the answer is suppose to be 4 but i get 0..
OpenStudy (anonymous):
(cost + 2sint)dt
OpenStudy (anonymous):
from the previous problem, (cost+2sint)(sqrt(sint^2+cost^2)?
OpenStudy (anonymous):
integral from 0 to pi correct? sin^2+cos^2 = 1
OpenStudy (anonymous):
bingo
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OpenStudy (anonymous):
got it??
OpenStudy (anonymous):
working it out, but i think i got it. thanks
OpenStudy (anonymous):
WELCOME
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