Math, asked by harkeerat47, 11 months ago

pls answer the question ​

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Answers

Answered by vaish123430
2

Answer:

322

Step-by-step explanation:

(a+1/a)³=a³+(1/a)³+3*(a)*(1/a)*(a+1/a)

7³=a³+(1/a)³+(3*7)

a³+(1/a)³=7³-21=322

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