What is the value of the hypotenuse in a right triangle with legs measuring 5 cm and 12 cm?
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Find the value of sinh(2) - cosh(3) + tanh(-1), where sinh(x) is the hyperbolic sine, cosh(x) is the hyperbolic cosine, and tanh(x) is the hyperbolic tangent.
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Question: What is the factored form of the quadratic expression 4x^2 - 9?