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Free webinar on Robotics (Block Chain) Learn to create a Robotic Device Using Arduino
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Tan thita/secthita-1+tan thita/secthita+1=2cosecthita Tan thita/secthita-1+tan thita/secthita+1=2cosecthita
tan thita(sec thita +1)/(sec^2thita -1) + tan thita (secthita-1)/ (sec^2thita-1)(tanthita secthita + tan thita + tanthta sec thita – tanthita)/tan^2thita= 2secthita/tanthita=2/sinthita= 2cosec thita...... [hence proved]
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