ICSE Class 10 Answered
If a,b,c are in continued proportion ,prove that (a+b+c) (a-b-c) = a^2+b^2+c^2
Asked by sameeksha | 23 Feb, 2018, 06:37: PM
Expert Answer
the question is "If a,b,c are in continued proportion,prove that (a+b+c) (a-b+c) = a2+b2+c2"
open brackets and multiply
use
ac=b2
Answered by Arun | 23 Feb, 2018, 06:49: PM
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