Question: As in Example 4.20 let L0, L1, L2, . .. denote the Lucas numbers, where (1) L0 = 2, L1 = 1; and (2) Ln+2

As in Example 4.20 let L0, L1, L2, . .. denote the Lucas numbers, where (1) L0 = 2, L1 = 1; and (2) Ln+2 = Ln+1 + Ln, for n > 0. When w > 1, prove that
L21 + L22 + L23 +∙ ∙ ∙ ∙ + = LnLn+1 - 2.

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