0 votes
628 views
in Linear Inequations by (51.0k points)
closed by

If x, y, z are all positive real numbers. Prove that (x + y + z) \(\big(\frac1x+\frac1y+\frac1z\big)\)≥ 9

1 Answer

+1 vote
by (48.4k points)
selected by
 
Best answer

We apply the AM, GM inequality here

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

...