Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • In triangle PQR, p,q,r are in G.P. and . Then  <img alt="

In triangle PQR, p,q,r are in G.P. and \angle Q=60^{\circ}. Then  p^2,q^2,r^2 are in ?

Option: 1

A.P.


Option: 2

G.P.


Option: 3

H.P.


Option: 4

None of these


Answers (1)

best_answer

\\p,q,r \ are\ in\ G.P. \Rightarrow q^2=pr\\\\ \cos Q=\frac{1}{2}=\frac{p^2+r^2-q^2}{2pr}\\ p^2+r^2-q^2=pr\\ p^2+r^2=2q^2\\ p^2,q^2,r^2 \ are\ in\ A.P.

Posted by

Devendra Khairwa

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions