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Verified answer
1. 2-4 , 3+1 = -2,42. 1-2 , -4+7 = -1,3
A + T = A'
A = A' - T
A = (2, 3 ) - (4, -1)
A = (2 - 4), (3-(-1))
A = (-2, 4)
2) A + T = A'
T = A' - A
T = (1, -4) - (2, -7)
T = (1 - 2) , (-4 - (-7))
T = (-1 , 3)