00:01
In this question we are given f x, y, z is equal to y minus x and y.
00:11
And z is given as x square plus y square and x minus 2, sorry, z minus 2x is equal to 3.
00:21
We have to find the line integral over the curve f dot d r.
00:28
And this is equal to double derivative curl of f dot n d s so firstly we find the value of n cap which is equals to minus two i cap plus zero j cap plus k cap divided by square root of two square minus two square is four plus zero plus one square is one which comes out to be minus two zero one divided by a square root of two square.
00:58
Root 5.
00:59
So now we find the value of curl f.
01:02
So curl f is equals to i jk determinant.
01:08
Here we have del divided by del x, del divided by del y, del divided by del z.
01:15
And the values as if, sorry, values of f is y minus x and y.
01:20
When we solve this, this comes out to be i cap...