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Calculate the limit value lim X0 2x + 3 cos x 2x + 7 Calculate the limit value lim x-00 2 sinx - 3x

Calculate the limit value lim X0 2x + 3 cos x 2x + 7 Calculate the limit value lim x-00 2 sinx - 3x 3x - 1 Use the definition of continuity and prove that the function f(x) = x at an arbitrary point x=a

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