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Explain why sin−1(sin120◦) 6= 120◦.? How do I know when a question requires normalcdf vs invnorm? PLEASE HELP, I'M STRUGGLING Use Newton's method 7 cos(x)=x+1 x=? Molar mass of Radon if mercury vapor diffuses 1.082 times as fast as radon gas? Assume that Graham's law holds for diffusion.? What difference does the number of blades on a countersink drill bit make?