Evaluate the line integral 2 + x2y ds where c is the upper half of the circle x2 + y2 = 1.

Parameterize C by

r(t) = 〈x(t), y(t)〉 = 〈cos(t), sin(t)〉

with 0 ≤ t ≤ π. Then the line integral is

black/brown

step-by-step explanation:

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