Wartość liczby a^4+1/a^4 jeżeli a-1/a=3
a⁴+1/a⁴ =, dla: a+1/a = 3
a+1/a = 3 I()²
(a-1/a)² = 3²
a²-2+1/a² = 9
a²+1/a² = 11 I()²
(a²+1/a²)² = 11²
a⁴+2+1/a⁴ = 121
a⁴+1/a⁴ = 119
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a⁴+1/a⁴ =, dla: a+1/a = 3
a+1/a = 3 I()²
(a-1/a)² = 3²
a²-2+1/a² = 9
a²+1/a² = 11 I()²
(a²+1/a²)² = 11²
a⁴+2+1/a⁴ = 121
a⁴+1/a⁴ = 119