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Free webinar on Robotics (Block Chain) Learn to create a Robotic Device Using Arduino
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if cos2A= (a+bcosΠ)/acosΠ-b, then prove tan(A/2)=√(a-b)/√(a+b) tan(Π/2) if cos2A= (a+bcosΠ)/acosΠ-b, then prove tan(A/2)=√(a-b)/√(a+b) tan(Π/2)
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