- Lim φ-> Pi/4 (sec^2φ-2tgφ)/(1+cos4φ)?

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.. ::: :::::: what is Marcy s dot rule? What is the chemical formula for road salt? Expression? Hallar la ecuación de la recta que cumple condiciones dadas: pasa por (-3,4) y es perpendicular a la recta y=3x+2? The least common multiple of 2 numbers is 60. One of the numbers is 7 less than the other. What are the numbers?