1.
Let α,β\alpha, \beta be two roots of the quadratic equation x2+axb=0x^2 + ax - b = 0, b0b \neq 0. If the straight line xcosθ+ysinθ=cx\cos\theta + y\sin\theta = c touches the curve (x/α)n+(y/β)n=2(x/\alpha)^n + (y/\beta)^n = 2 at the point (α,β)(\alpha, \beta), then (a/b)2+2/b(a/b)^2 + 2/b is equal to