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A vertical line passing through the point (h, 0) intersects the ellipse `(x^(2))/(4)+(y^(2))/(3)=1` at the point P and Q. Let the tangents to the ellipse at P and Q meet at the point R.
If `Delta(h)= " Area of the "DeltaPQR, Delta_(1)(h)=underset(1//2lehle1)max Delta(h)`
and `Delta_(2)(h)=underset(1//2lehle1)minDelta(h), then(8)/(sqrt5)Delta_(1)-8Delta_(2)=`

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