Answer: A.) c is -1 -2 b is -4 -2 a is -3 -3
Step-by-step explanation: sry but thats all i know i hoped i helped a lil bit :)
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Let
The origin of coordinates the tree
r1 = vector position of the child 1.
r2 = vector position of the child 2
Child 1:
r1 = (12i + 12j)
Child 2:
r2 = (-18i + 11j)
The scalar product will be given by:
r1.r2 = ((12) * (- 18)) + ((12) * (11)) = - 84
The scalar product of their net displacements from the tree is -84m ^ 2
