if (a – 1/a) = 2 , then (a^2 + 1/a^2) will be equal to ?​

Question

if (a – 1/a) = 2 , then (a^2 + 1/a^2) will be equal to ?​

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Samantha 1 week 2021-09-11T12:17:13+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-09-11T12:18:29+00:00

    Answer:

    2

    Step-by-step explanation:

    (a-1)/a = 2

    Squaring both sides

    (a-1)^2/a^2 =2^2

    (a^2 +1 – 2a)/a^2 = 4

    (a^2 + 1)/a^2 – 2a/a^2 = 4

    (a^2 +1)/a^2 = 4 + 2/a

    Now,

    (a-1)/a =2

    a-1 = 2a

    a = – 1

    (a^2 +1)/a^2 = 4+2/-1 = (- 4+2)/-1 = -2/-1 = 2

    0
    2021-09-11T12:18:51+00:00

    Answer:

    4

    maybe helpful

    mark as brainist

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