Six common questions when applying Conditional Formatting:
Use of Colour Scale:
Colour Scales apply a gradient of colors to cells based on their value in relation to other cells in the range.
- Highest values are assigned one color (e.g., green),
- Lowest values another color (e.g., red),
- Middle values get a blend (e.g., yellow).
This provides a visual heatmap-like representation to help users instantly interpret large sets of numerical data.
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 \(P,O,Q\).