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3.1: [a, b]

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    164576

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    Sehemu hii itazingatia vipindi katika fomu [,]. Kwa uchunguzi, muda huanza na kuishia na mabano. Matumizi ya mabano yanamaanisha kuwa mwisho wa mwisho unajumuishwa katika kuweka. Sehemu hii itajumuisha mwisho wa kulia na mwisho upande wa kushoto tangu tena notation ya muda huanza na kuishia na mabano.

    Mfano Template:index

    \([2,5]\)

    Suluhisho
    clipboard_e5bbc5c20593c6d24997fce4d7c5813bb.png
    Kielelezo Template:index

    Katika mfano huu, seti inajumuisha mwisho wa 2 na 5, kuweka pia inajumuisha kila namba kati ya 2 na 5. Kwa hiyo, 3, 3.25, 4, 4.9999, na 5 ni sehemu zote za kuweka. Wakati graphing kuweka katika idadi line imefungwa risasi • hutumiwa katika endpoints kwamba ni pamoja na katika seti.

    Mfano Template:index

    \([-4,10]\)

    Suluhisho
    clipboard_e3825ed611ea13a719763d0cc0431fa81.png
    Kielelezo Template:index

    Sawa na mfano uliopita, pointi za mwisho -4 na 10 zinajumuishwa katika kuweka. Seti ina namba zote kati ya -4 na 10. Kwa hiyo, namba -2, 0, 1, 2, 3, 4.5, 10 ni mifano ya namba ndani ya muda\([-4,10]\).

    Zoezi Template:index

    Chora mstari wa nambari kwa vipindi vifuatavyo na uorodhe angalau namba tatu ndani ya seti.

    1. \([-3,3]\)
    2. \([-23,-20]\)
    3. \([-101,242]\)
    4. \([2.5,3]\)
    5. \([0,12]\)
    6. \([-4.2,6.1]\)