L F s ¾ s F Q 6 ® QProof lnexy = xy = lnex lney = ln(ex ·ey) Since lnx is onetoone, then exy = ex ·ey 1 = e0 = ex(−x) = ex ·e−x ⇒ e−x = 1 ex ex−y = ex(−y) = ex ·e−y = ex 1 ey ex ey • For r = m ∈ N, emx = e z }m { x···x = z }m { ex ···ex = (ex)m • For r = 1 n, n ∈ N and n 6= 0, ex = e n n x = e 1 nx n ⇒ e n x = (ex) 1 • For r rational, let r = m n, m, n ∈ N Speculation over the name X Æ A12 has been a major topic of conversation since the couple welcomed the baby boy into the world on Monday, with questions over what the characters mean M 2 Zxa B Moz N Euaean Ece Ae U Eb U A ºuktl Voo Flickr X ae a-x
