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Mathematics 11 Online
OpenStudy (anonymous):

Find the sum of the following series Sum[(3^(n-2))/8^n] from n=2 to infinity

OpenStudy (chaise):

They're all identity properties. If the answer equals 1 in mutliplication, you have an identity element, if the answer equals to 0 in addition you have an identity element. Addition: a+e = 0 Multiplication: a x e = 1 e being the right identity.

OpenStudy (chaise):

wp.

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