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य‌द‌ि `(a^(2)+b^(2))/(c^(2))=(b^(2)+c^(2))/(a^(2))=(c^(2)+a^(2))/(b^(2))=1/k (k!=0)` है तो `k=`A. 2B. 1C. 0D. `1//2`

Answer» Correct Answer - D
`(a^(2)+b^(2))/(c^(2))=(b^(2)+c^(2))/(a^(2))=(c^(2)+a^(2))/(b^(2))=1/k`
Put `a=b=c=1`
`(1+1)/1+(1+1)/1+(1+1)/1=1/k`
`2=2=2=1/k`
`k=1/2`


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