For the following questions answer them individually
The value of $$[\frac{cos^2A(sinA + cosA)}{cosec^2A(sinA-cosA)} + \frac{sin^2A(sinA - cos A)}{sec^2A(sinA + cos A)}]$$$$(sec^2A - cosec^2 A)$$
The sub divided bar diagram given below depicts H.S. Students of a school for three years. Study the diagram and answer the questions.
In which year the school had the best result for H.S. in respect of percentage of pass candidates ?
Following figure is Pie-chart representing item wise cost of a manufacturing certain product. Study the chart and answer the questions.