1.

Locus of a point that divides a chord having slope 4 hyperbola xy=1 in the ratio 1 : 2, is :

Answer»

`x^(2)+y^(2)=10`
`xy=1`
`x^(2)=4y`
`16X^(2)+10xy+y^(2)=2`

Solution : , PROBABILITY = `(.^(8)C_(3)xx1)/(.^(15)C_(4))`


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