A) \[\frac{{{x}_{1}}-{{x}_{2}}}{2}\]
B) \[\frac{{{x}_{1}}+{{x}_{2}}}{2}\]
C) \[\frac{2{{x}_{1}}+3{{x}_{2}}}{2}\]
D) \[\frac{{{x}_{1}}+2{{x}_{2}}}{3}\]
Correct Answer: B
Solution :
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