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Is there a pattern in the plane that has symmetry of scale but no rigid symmetries? If so, describe this pattern in detail. If not, why.? What is the easiest way To solve Bigpond login issues? Roberto Tello G-mail? Prove that Sin( [π/2] - x) = cos(x)? Help, double integrals, I cant get answer:
∫[from 0 to infinity] (tan−1(5x)−tan−1(2x))/(x) dx. I got:
∫[from 2 to 5] (1/(1+(xy)^2)) dy.?