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Why human evolve so slow? And are they evolving forward or backwards? Why? I am a man!,No question,No question mark.? My 5kw generator used to power the microwave, now the microwave will turn on but doesn? Given, f(x.y) = 10 * (sin(xy) + 1) / (sqrt(x^2+y^2+1)):
a) find a highest direction at point (0,1)
b) tangent line at point (0,1)? How far is the nearest neutron star?