9 thoughts on “Modulus Addition – 3

  1. I think there is mistake in graph of |X+1|-|2X-2|
    It should be constant(with slope =0) except b/w roots, as you have said.
    please clarify,
    Thanks

  2. Sir,
    In the last question if we want to calculate the minimum value of |x+1|-|2x-2|, will it be
    (-infinity) and the maximum value 2 at x=1?

    Regards,
    Adorini

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