Satya's back (try this!!)

g(x+1)+g(x-1)=g(x)..Find the period of g(x).

7 Answers

106
Asish Mahapatra ·

SOLN:
g(x+1) + g(x-1) = g(x)
g(x+2) + g(x) = g(x+1)

adding both,
g(x+2) + g(x-1) = 0 = g(x-1) + g(x-4)
=>g(x+2) = g(x-4)
=> period = 6

1
SatyaPriya Ojha ·

way to go! Asish..good job..correct the 4th line

1
bindaas ·

substituite g(x) =cos (Ï€x3)

39
Dr.House ·

good to find a substitute in case of exam

but its neither too long nor too difficult.....

anywyays good one

1
bindaas ·

its not exactly a tukka

its a charateric function of this recursion !

1
Che ·

generating polynomials ? rit

106
Asish Mahapatra ·

yeah edited :)

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