a tan x 1. Ify ela prove that (1+x)yn+2+(2nx + 2x - a)yn+1+n(n + 1)yn =...

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a tan x 1. Ify ela prove that (1+x)yn+2+(2nx + 2x - a)yn+1+n(n + 1)yn = 0. 2. State and prove Lagrange's mean value theorem. lim sin xx 3. Evaluate 0+x X 4. Find the asymptotes of the curve (x + y)(x + 2y + z) = x+9y-2. 5. Find the radius of curvature of the curve ra(1- cose). a tan x 1. Ify ela prove that (1+x)yn+2+(2nx + 2x - a)yn+1+n(n + 1)yn = 0. 2. State and prove Lagrange's mean value theorem. lim sin xx 3. Evaluate 0+x X 4. Find the asymptotes of the curve (x + y)(x + 2y + z) = x+9y-2. 5. Find the radius of curvature of the curve ra(1- cose).