... is a root between x=-1.771 and x=-1.770 x -1.771 -1.7709 -1.7708 -1.7707 -1.7706 -1.7705 -1.7704 y -0.0248 -0.0206 -0.0164 -0.0121 -0.0079 -0.0037 0.0005 This shows that the root between x=-2 and x=-1 is between x=-1.7705 and x=-1.7704. The accuracy of this method to find roots is stated below. -1.7705

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