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- For ∑ 1/(n - π) and ∑ (n - 1)/(n3 + 1), solve with either big Θ or with Limit Comparison.What is the point on the curve r(x)=x^2+6 that is closest to the point (3,6)? Enter your answer as an order pair.I want to find the limit of x going to -3 from the right side. for the equation (x)/(x^2-9) I know it goes to positive infinity. However, I don't know how to solve it algebraically.