Consider the line integral

Consider the line integral

Q. Consider the line integral

โˆซ(๐‘ฅ๐‘‘๐‘ฆ โˆ’ ๐‘ฆ๐‘‘๐‘ฅ)

๐ถ

the integral being taken in a counterclockwise direction over the closed curve ๐ถ that forms the boundary of the region ๐‘… shown in the figure below. The region ๐‘… is the area enclosed by the union of a 2 ร— 3 rectangle and a semi-circle of radius 1. The line integral evaluates to

(A) 6 + ๐œ‹/2

(B) 8 + ๐œ‹

(C) 12 + ๐œ‹

(D) 16 + 2๐œ‹

Ans: 12 + ฯ€

Solution:

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