The function f(x)=2x^3-4 is said to be: options a Surjective and one to one b Injective only c surjective only d surjective and injective In the following sentence, determine whether or not it is a logical proposition. 'Water passes through my house I cate from my heart'. options a. yes it is proposition b. it is not proposition c. The preposition is incomplete d. Has features of a proposition If you have the letters ABCDEF, how many strings contain the substring AE or EA? options a. 2 (41) b. 2! c. 4(1) d. 2(4) The addition rule for functions in O(n) = O(f(n)+g(n)) notation is: opcions a. max(f(x),g(x)) b. min(f(x),g(x)) c. mcd(f(x)) d. mcm (f(x))