20. Which of the following statements are FALSE? dy 2л -5 I If y = In (7 - 5x), then de 7 - 5x 3e3x If y=ln(e* +1), then dy de e3x +1 II %3D If y = e cos.x, then dy = -2e sin x. dx III A I and II В I and III II and III D I, II and III

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