if a is not equal to 0 an a-1/a=3 find i) a²+1/a² ii) a³-1/a³​

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if a is not equal to 0 an a-1/a=3 find i) a²+1/a² ii) a³-1/a³​

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Eden 1 month 2021-08-18T02:41:41+00:00 1 Answer 0 views 0

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    2021-08-18T02:42:42+00:00

    Answer:

    Step-by-step explanation:

    a is not equal to 0

    a-1/a=3

    (i) . a²+1/a²=(a-1/a)²+2×a×1/a

    =3²+2×1

    =9+2=11

    (ii). a³-1/a³=(a-1/a)³+3×(a×1/a)(a-1/a)

    =3³+3×1×3

    =27+9=36.

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