With ϕ ≈ 1.61803 the golden ratio, we have 1/ϕ = ϕ - 1, so that
Replace :
Split the integral at x = 1. For the integral over [1, ∞), substitute :
The integrals involving tan⁻¹ disappear, and we're left with
fairveiw has 330 seventh grade students, and is ratio of boys to girls is 6:5. salem has 360 seventh grade students, and its rat
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