If $(2 + 3)^{n} = I + f,$ whare $I$ and $n$ are positive integers and $0 < f < 1$ , show that I is an odd integer and $(1 - f) (1 + f) = 1$

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Alexander Discussed

(2 + 3)^{n} = I + f,

whare

I

and

n

are positive integers and

0 < f < 1

, show that I is an odd integer and

(1 - f) (1 + f) = 1

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Question Text

(2 + 3)^{n} = I + f,

whare

I

and

n

are positive integers and

0 < f < 1

, show that I is an odd integer and

(1 - f) (1 + f) = 1

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