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[ -1 1 1 ] let A = [ 2 -2 -3 ] [ -2 2 3 ] a = sin(1) find sin(A^2001) = ? 請問這題要怎麼解? 我已經求出 [ 1 1 0 ] [ 1 -1 -1 ] 可逆矩陣P = [ -1 1 -1 ] P^(-1) = [ 0 1 1 ] [ 1 0 1 ] [ -1 1 2 ] [ -1 0 0 ] 對角矩陣D = [ 0 0 0 ] [ 0 0 1 ] -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.166.117.156