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Math Help - simplifying an expression.

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    simplifying an expression.

    I am in need of some help solving this question. It is supposed to be z to the power 10 and z to the power 11. It need to be simplified. Thank you in advance.

    Z10/Z11
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    Quote Originally Posted by LisaAnn_86 View Post
    I am in need of some help solving this question. It is supposed to be z to the power 10 and z to the power 11. It need to be simplified. Thank you in advance.

    Z10/Z11
    \frac{a^m}{a^n}=a^{m-n} if m>n

    and

    \frac{a^m}{a^n}=\frac{1}{a^{n-m}} if n>m

    so by using the second one since 11 is greater than 10 we get

    \frac{z^{10}}{z^{11}}=\frac{1}{z^{11-10}}=\frac{1}{z^1}=\frac{1}{z}
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