What is the value of sine of an angle in a right triangle if the opposite side is 5 and the hypotenuse is 10?
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Math question: For the parabola function 𝑦 = ax^2, if the vertex is at (3, 4) and one other point on the parabola is (6, 9), can you find the value of 'a'?
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Math question: Determine the absolute extrema of a function f(x)=3x^2+2x-1 on the interval [-1, 2].