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Mathematics 14 Online
OpenStudy (anonymous):

If sequence an (aka a sub n) is defined as an=sqrt(2-a(n-1)), and a1=sqrt(2), prove by induction that an is increasing.

ganeshie8 (ganeshie8):

what have you tried so far ?

ganeshie8 (ganeshie8):

and how can a sequence be increasing when you keep subtracting values from it ? think a bit

OpenStudy (anonymous):

sorry it should be sqrt(2+a(n-1))

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