A) \[{{a}^{2}}+{{b}^{2}}+{{c}^{2}}\]
B) \[\frac{1}{2}\,({{a}^{2}}+{{b}^{2}}+{{c}^{2}})\]
C) \[{{a}^{2}}-{{b}^{2}}+{{c}^{2}}\]
D) \[\frac{3}{\Delta }\]
Correct Answer: A
Solution :
Clearly, \[{{X}_{CM}}\] \[{{m}_{2}}{{x}_{2}}=-{{m}_{1}}{{x}_{1}}\] \[\therefore \] \[{{x}_{2}}=\frac{{{m}_{1}}}{{{m}_{2}}}{{x}_{1}}\]You need to login to perform this action.
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