Find an recursive formula for the geometric sequence P(n)={−7,5.25,−3.9375,2.953125,…}\displaystyle {P}{\left({n}\right)}={\left\lbrace-{7},{5.25},-{3.9375},{2.953125},\ldots\right\rbrace}

P(1)=\displaystyle {P}{\left({1}\right)}=
P(n)=P(n−1)∗\displaystyle {P}{\left({n}\right)}={P}{\left({n}-{1}\right)}\ast  

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