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Mathematics 25 Online
OpenStudy (anonymous):

f(x,y) = x+2y. Evaluate scalar line integral over given path x. x(t)=(cost,sint), 0

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

OpenStudy (anonymous):

got it??

OpenStudy (anonymous):

working it out, but i think i got it. thanks

OpenStudy (anonymous):

WELCOME

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