Two aeroplanes leave an airport, one after the other. After moving on runway, one flies due North and other flies due South. The speed of two aeroplanes is 400 km/hr and 500 km/hr respectively. Considering PQ as runway and A and B are any two points in the path followed by two planes, then answer the following questions. (i) Find tanθ; if ∠APQ = θ. (ii) Find cotB. (iii) Find tanA. (iv) Find secA. (v) Find cosecA.
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