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Prove that tanA=cosec2A-cot2A.Deduce the of value tan(45/2)? Graph g(x)=2(x-2)^2+5 by transforming the graph of f(x)=x^2. Describe the transformation? Poll: Which is bigger? A school bus or a city bus? What are the ideal conditions in temperature and humidity for storing class C fireworks ? An rc circuit has a resistancs of 2k ohms and a capacitance of .01592 microfarad. the frequency is 5khz. what is the phase angle?