Math, asked by jiyaanand2217, 9 months ago

Find : a^3 + 1/a^3 , if a + 1/a = 5

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Answered by Anonymous

1

a+1/a=5

(a+1/a)³=5³

a³+1/a³+3•a•1/a(a+1/a)=125

@³+1/@³=125-5

a³+1/a³=120

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