- I need to find all solutions in [0,2pi): -9cos(squared)(2x) + 1 = 0?

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What are the elements of order 5 in z130 and the elements of order 5 in d65 where d is the dihedral group? An elevator has a maximum load of 1600 lb. How many 75 kg persons can use the elevator at the same time? How long does it take a jew to shape-shift in to something like a rat? (again). prove : x⁴ + y⁴ + z⁴ ≥ xyz(x + y + z) .? X-14=z
solve it!!?