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albajenner (27)in math • last year
If x^2 + y^2 = 1, what is the minimum value of x + y?
After reading many interesting approaches to this question, most of them using Calculus, I decided to try to offer an elementary solution. If [math] a ~& ~b [/math] are such that [math]a^2 + b^2 =…
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If x^2 + y^2 = 1, what is the minimum value of x + y?