Find the 15th term of the geometric sequence 3,−12,48,.

asked Oct 17, 2018 61.2k views

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The answer is 3 x (-4)^14
So if odd it's negative 15 position has exponential of 14 because we start with 0

SS Hegde answered Oct 18, 2018

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f(x) = 3 * (-4)^n
f(15) = 3 * (-4)^15
f(15) = 3(-1073741824)
f(15) = -3 221 225 472

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