1.

If `a,b,c in R` then number of ordered triplet `(a,b,c)` which satisfy the equations `a^(2)+2b=6,b^(2)+4c=-7` and `c^(2)+6a=-13` is

Answer» Correct Answer - A
`becausea^(2)+2b=6,b^(2)+4c=-7` and `c^(2)+6a=-13`
`impliesa^(2)+b^(2)+c^(2)+2b+4c+6a=-14`
`implies(a+3)^(2)+(b+1)^(2)+(c+2)^(2)=0`
`impliesa=-3,b=-1,c=-2`, but these values does not satisfy given equation


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