What is the maximum value of the function f(x) = 3x^2 + 5x - 2?
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In a right triangle with angle A, if sin(A) = 0.8, what is the value of cos(A)?
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Math question: The parabola function 𝑦 = 4𝑥^2 represents the path of a projectile launched from the ground. Find the maximum height reached by the projectile.