what is the sum of the measures of angle E, angle D, and angle ECD. A. 76° B. 104° C. 128° D. 180°
1 answer:
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a. Parameterize by
with .
b/c. The line integral of over
is
d. Notice that we can write the line integral as
By Green's theorem, the line integral is equivalent to
where is the triangle bounded by
, and this integral is simply twice the area of
.
is a right triangle with legs 2 and 5, so its area is 5 and the integral's value is 10.
The other answer is 12x2 – 8xy + 12x + y2 – 2<span>y</span><span />
