[Solved] Write the word or phrase that best completes each statement or answers the question. Use mathematical induction to prove that the statement is true for every positive integer n. -\[8 + 16 + 24 + \ldots + 8 n = 4 n ( n + 1 )\] Pornography: Explicit visual or written material intended to stimulate sexual excitement. Research Finding: The result or outcome of a research study, often contributing new knowledge or understanding to a particular field. Sexual Arousal: Sexual Arousal is a complex psychological and physiological state involving increased blood flow, heightened sensitivity, and preparation for sexual activity. Orgasmic Disorder: A sexual dysfunction characterized by difficulty experiencing orgasm despite adequate sexual stimulation.