The points - a + 4b - 3c, 3a + 2b + 5c, -3a + 8b - 5c, -3a + 2b + c are

Add: 3a - 4b + 4c, 2a + 3b - 8c, a - 6b + c

Add : 3a ( 2b + 5c), 3c (2a + 2b)

Add: 6a + 8b - 5c, 2b + c - 4a and a - 3b - 2c.

Add the following algebraic expressions : 2a - 3b + 4c , -3a + 2b - 5c , 7a - c and 3b + 6c

A : The centroid of the triangle formed by the points 2a + 3b, 5a + 4b, 2a - b is 3a + 2b. R : The centroid of the triangle formed by the points a, b, c is (a + b + c)/(3)

If the vectors 2a - b + c, a + 2b - 3c, 3a + mb + 5c are linearly dependent, then m =

Add the expressions : 3a - 2b + 5c and 4a + 7b - 9c