Which one is correct, and which one is wrong? Give reasons for your answers. x? – 2x 2r – 2 a. lim X-0x = lim I-0 2r sin x cs x 2 = lim X-0 2 + sin x = 1 2 + 0 x - 2x 2x - 2 -2 b. lim X-0x lim -0 2r 0 - = 2 1 sin x cos x

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