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Britania S.

asked • 05/08/20

Find the 4th term of the sequend in which a1=2 and an=−4an−1+2.

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Patrick B. answered • 05/11/20

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An = (-4) A_(n-1) + 2 with A1 = 2

A2 = (-4)(A1) +2 = (-4)*2 + 2 = -8 + 2 = -6

A3 = (-4)(-6) + 2 = 24 +2 = 26

A4 = (-4)(26) + 2 = -104 + 2 = -102

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