Simplify the expression（1+cotx）（1-cotx）-csc square x
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Q: Each of the systems shown is initially at rest. Neglect axle friction and the mass of each pulley. 1...
A: Solution: Calculate the acceleration of the sysim using Nwetons second law of motion. The free body...
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Q: If 545 g of tissue receives 7 Joules, how many Grays are absorbed?
A: Given: The mass of the tissue is m = 545 g The energy received by the tissue is E = 7 Joules
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A: Given:Current, I=15 ATime, t=3 min=3×60=180 s
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Simplify the expression（1+cotx）（1-cotx）-csc square x as far as possible.
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