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27 May, 20:50

If a = 2b^3 and b = - 1 / z c^-2, express a in terms of c.

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  1. 27 May, 20:57
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    a = - 2 z^-3 c^6

    Step-by-step explanation:

    equations are given as

    a = 2b^3 ... 1 and

    b = - 1 / z c^-2 ... 2

    put the value of b in eq 1

    a = 2 (-1/z c^-2) ^3

    a = 2 (-1/z^3 c^-6)

    or a = - 2 z^-3 c^6
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