1.

If each of the lines 5x+8y =13 and 4x -y=3contains a diameter of the circle x^(2) +y^(2) -2 (a^(2) -7a +11) x -2(a^(2) -6a + 6 ) y+b^(3) +1= 0then

Answer»

` a= 5 and B in(-1,1) `
` a= 1 and b in (-1,1) `
` a=2 and b in (-INFTY ,1) `
` a= 5 and b in (- infty ,1 )`

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