1 .- Given the following funcion: f(ax) = -2x2 + 5x - 3 find the result of the following operation f(ath)-f (a) h 2 .-Determine the value of 1 + tag? (arctg5) + 1 + ctg2 (arcctg 7) 3.- select the correct statement regardingthe following function : f(x) = 14 ( if the function is injective or not injactive or if it is not possible to know) 4.- calculate the value of : 8ctg(arctg2) - 6cos2 (arccos (-2)) 5.- given the feels function f(x) = 124, r+4' perform the following operation f(ath)-f(x) h 6.- determine the value of cos2 (arccos 5 3