The economic reforms process impacted the agriculture sector in the following ways:
Reduction in Subsidies: Post-reform policies reduced government subsidies on fertilizers and other inputs, increasing the cost of production for farmers.
Market Deregulation: Reforms led to greater reliance on market forces for agricultural pricing, reducing state control.
Focus on Exports: There was an increased emphasis on promoting agricultural exports, encouraging diversification into commercial crops.
Private Sector Participation: Encouraged private sector investment in agricultural infrastructure, such as cold storage and food processing.
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).