If \( a . b, c, d \) are in continued proportion, prove that \( \left(a^{2}+b^{2}+c^{2}\right)\l...
Channel:
Subscribers:
447,000
Published on ● Video Link: https://www.youtube.com/watch?v=DuUCEyjmQOc
1If \( a . b, c, d \) are in continued proportion, prove that \( \left(a^{2}+b^{2}+c^{2}\right)\left(b^{2}+c^{2}+d^{2}\right)=(a b+b c+c d)^{2} \)
ЁЯУ▓PW App Link - https://bit.ly/YTAI_PWAP
ЁЯМРPW Website - https://www.pw.live