Use MATLAB to plot the polynomial y = 3x 4 - 5x 3 - 28x 2 -
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Use MATLAB to plot the polynomial y = 3x4 - 5x3 - 28x2 - 5x + 200 on the interval $1 ≤ x ≤ 1. Put a grid on the plot and use the ginput function to determine the coordinates of the peak of the curve.
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