If c represents the curve * +y = 1, c2 represents r+=l ,drawn from (1,0,1) to (-1,0,1) drawn counterclockwise in the upper half plane (y0) of the plane x=t. & =

If C represents the curve * +y = 1, C2 represents r+=l ,drawn from (1,0,1) to (-1,0,1) drawn counterclockwise in the upper half plane (y0) of the plane x=t. & = yzi + zxj + ryk. f = F.dr and I2 = e2 F:dr then which of these is/are not true