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Please help me!!! Find the second derivative and differentiability, concavity, and points of inflection of this equation x/sqrt(x^2+2)? A tuning fork produces the note G3, which has a frequency of 196 Hz. What are the possible frequencies of its Fourier components? C4H5N. How many atoms in the molecule exhibit sp hybridization, sp2 hybridization, and sp3 hybridization? TRIG IDENTITIES HELP!!
tan^2xcos^2x = (sec^2x-1)(1-sin^4x) / 1+sin^2x? For what value of x is the function h undefined? h(x)= 1 / [(x-5)^2] + [4(x-5)] + 4?