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If locus and corresponding directrix of an ellipse are (3,4) and x+y-1=0 respectively and eccentricity is 1/2 then find the coordinates of extremities of major axis.

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`d=|(3+4-1)/sqrt(1^2+1^2)|=6/sqrt2`
`2a=a/2=6/sqrt2`
`(3a)/2=6/sqrt2`
`a=2sqrt2`
major axis `m=1`
`(y-4)=1*(x-3)`
`y=x+1(M.A)`
`x+y-1=0`
...
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