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Papua New Guinea is located on the eastern half of what Island? If a frog swallows a bug live is it alive in its stomach?? If t represents tan 2A, is there i can represent tan A or tan 4A in terms of A. Sin 4theta + tan 2theta =4, where t represents tan 2A? The radius of a circle is 9 centimeters. What is the circle's area? Im in the U.S and just received a 380 volt 3 phase heater. Is it going to be hard to set up?