Math, asked by herodheenapc0qve, 1 year ago

find the value:if a+1/a=7,find a³+1/a³.

Answers

Answered by FeninPJ
10
a+1/a=7
(a2+1)/a=7
a2-7a+1=0
find the value of a by solving above eqn.then substitute value of a in a3+1/a3

herodheenapc0qve: correct answer
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