- Limit as x approaches 0 (sin^2(2x))/3x^2 ?

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What is the frequency (in reciprocal seconds) of electromagnetic radiation with a wavelength of 1.45 cm? Enter in scientific notation? Estimate the wavelength (in nm) of such a proton moving at 2.95 × 108 m/s (mass of a proton = 1.673 × 10−27 kg).? What is the element zinc, and what is the element gold too? For the parent function y=√x the effect of a = 2 and h = -2 is the graph is stretched by a factor of |2| and moves 2 units to the left? Is it legal to eat bear meat? What is bear meat called?