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**Superposition principle? How to algebraically add up two equations??**

How do you add up

(λ (√3)) / (4pi(ε naught)R) (√3/2 i hat - 1/2 j hat) + (λ (√3)) / (4pi(ε naught)R) (√3/2 i hat + 1/2 j hat)???

the 1/2 j hat cancels out right? but what do i do with everything else?

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