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What countries took part in brazil International Mathematical Olympiad? I just drank a spoonful of zinc sulfate heptahydrate and a spoonful of ibuprofeno, conseqences??? If there is intelligent life out there somewhere in space why do people assume it will be similar to humans? What is the laplace transform of sin(8t)sin(6t)? I am able to get an answer via wolfram but I don't know the correct approach/steps.? In formally proving that lim x->1 (1/9x-1)=-8/9, let ε>0 be arbitrary. Determine δ as a function of ε. please write epsilon for ε for answer?