1.

यद‌ि `a^(2)+b^(2)+c^(2)=ab+bc+ca` है तो `(a+c)/b` का मान क्या होगा?

Answer» Correct Answer - B
According to the question
`a^(2)+b^(2)+c^(2)=ab+bc+ca`
Put `a=1, b=1, c=1`
`:. 1^(2)+1^(2)+1^(2)=1xx1+1xx1+1xx1`
`1+1+1=1+1+1`
`3=3` (satisfy)
`:. (a+c)/b=(1+1)1=2`


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