If a0=1,a1=3 and an^2 -a(n-1)*a(n+1)=(-1...

If `a_0=1,a_1=3 and a_n^2 -a_(n-1)*a_(n+1)=(-1)^n.` Find `a_3.`

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MODERN PUBLICATION-SEQUENCES AND SERIES-EXERCISE 9 (a) LATQ

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