Triangle A'B'C'is the result of reflecting triangle ABC across the line l Choose all answers that apply

a. BC and B'C' are both perpendicular to the y-axis

b. <B and <B' have the same measures

c. The perimeters of ABC and A'B'C' are the same
D. None of the above
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Find a parametrization for the curve「and determine the work done on a particle moving along γ in r3 through the force field f: r^3--r^3'where f(x,y,z) = (1,-x,z) and (a) im (γ) is the line segment from (0,0,0) to (1,2,1) (b) im (γ) is the polygonal curve with successive vertices (1,0,0), (0,1,1), and (2,2,2) (c) im (γ) is the unit circle in the plane z = 1 with center (0,0,1) beginning and ending at (1,0,1), and starting towards (0,1,1)