A) \[4\left( {{x}_{1}}+{{x}_{2}} \right)\]
B) \[4\left( {{x}_{2}}-{{x}_{1}} \right)\]
C) \[2\left( {{x}_{1}}+{{x}_{2}} \right)\]
D) \[2\left( {{x}_{2}}-{{x}_{1}} \right)\]
Correct Answer: B
Solution :
[b] \[Q=4({{x}_{2}}-{{x}_{1}})\]You need to login to perform this action.
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