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3x^2 - 12x + 7x - 28 = 3x^2 -5x - 28 = (3x + 7)(x - 4)
Sin(x) and cos(x) are periodic functions, and the value of these function have the range of 0 to 1. The result of x+(these function) will mainly be the value of x itself. As x approaches infinity, the effect of sin(x) and cos(x) will become smaller and
