LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
47.8k views
in Mathematics by (23.9k points)
Find three numbers in G.P. whose sum is 13 and the sum of whose squares is 91.

1 Answer

+2 votes
by (59.0k points)
selected by
 
Best answer

Let the numbers be a , ar , ar2

Now numbers are a , ar , ar2

If r = 3 and a = 1 then 

1, 3 , 9 are the numbers.

 If r = 1/ 3 and a = 9 then 

9, 3 , 1 are the numbers.

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.

Categories

...