0. e (a) (Cauchy24_Schwarz25 inequality, also referred to as Cauchy-Schwarz- Buniakovski26 inequality) If ne N and az, az, ... , an, bz,b2, ..., bn are real numbers, prove that n , -LVIA k=1 Lk=1 k=1 See Exercises 13 in Section 6.3 and 13 in Section 7.2.