Mr Tong had some money. After giving $1300 to each 5 of his children, he had $450 left. How much money did he have at first
1 answer:
You might be interested in
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.