Question Stem for Question Nos. 15 and 16: Consider the curve C₁ given by y = e⁻ˣ for x ∈ [0, 10π], and the curve C₂ given by y = e⁻ˣ(sin x + cos x) for x ∈ [0, 10π]. Let n be the total number of points of intersection of the curves C₁ and C₂. Suppose that α₁, α₂, …, αₙ ∈ [0, 10π] are the x-coordinates of the points of intersection of the curves C₁ and C₂ such that α₁ < α₂ < ⋯ < αₙ. The value of n is ___________.