The resultant of two vectors vec(A) & vec(B) is vec(C). If direction of vec(B) is reversed the resultant is vec(D). Then which of the following is true ?

The resultant of two vectors vec(A) & vec(B) is vec(C). If direction o

1.	The resultant of two vectors vec(A) & vec(B) is vec(C). If direction of vec(B) is reversed the resultant is vec(D). Then which of the following is true ?
Answer» `C^(2) + D^(2) = A^(2) + B^(2)` `A^(2) + C^(2) = B^(2) + D^(2)` `C^(2) + D^(2) = 2(A^(2) + B^(2))` `C^(2) - D^(2) = A^(2) + B^(2)` ANSWER :C