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If cosecθ - cotθ = \({1 \over a}\), then \( {a^2-1 \over a^2+1}\) is
The value of 7549 - 3468 - 5065 is
The speed of a boat in still water is 18 km/h and the speed of the current is 6 km/h. In how much time (in hours) will the boat travel a distance of 90 km upstream and the same distance downstream?
The value of \(cot{π\over 20}.cot{3π\over 20}.cot{5π\over 20}.cot{7π\over 20}.cot{9π\over 20}\) is
If \(6tan\theta-5\sqrt3sec\theta+12cot\theta=0\) where, \(0 <\theta< 90\), then value of \(cosec\theta +sec\theta\) is: