This sequence is stumping me, how would I go about solving this?(adsbygoogle = window.adsbygoogle || []).push({});

Write the sequence B = 1, -1/2, +1/4, -1/8, +1/16, ... in closed-form. I tried using (-1) has the top with different variable son the bottom, but nothing seems to add up. The 1 in the front is throwing me off. Any help would be appreciated. thank you

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# How to solve sequence?

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