1.

Find the locus of the mid-point of the chord of the hyperbola x^(2)/a^(2)-y^(2)/b^(2)=1 which subtends a right angle at the origin.

Answer»

`X^(2)//a^(4)+y^(2)//B^(4) =1//a^(2) +1//b^(2) `
` x^(2)//a^(4) +y^(2)//b^(4) =1 //a^(2) -1//b^(2) `
` x^(2)//a^(4) -y^(2)//b^(4) =1//a^(2) +1//b^(2) `
` x^(2)//a^(4) -y^(2)//b^(4) =1//a^(2) -1//b^(2) `

Answer :A


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