1.

If a tangent to the ellipse x^(2)/a^(2)+y^(2)/b^(2)=1(a gt b gt 0) having slope 1/3 is anormal to the circle x^(2)+y^(2)+2x+2y+1=0, then the maximum value of ab is

Answer»

`2/3`
9
`4/9`
`1/3`

ANSWER :A


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