If a+1/a=6 then find the value of a³+1/a³
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Answer:
198
Step-by-step explanation:
a+1/a = 6
taking cube on both sides
(a+1/a)^3 = 6^3
a^3 + 1/a^3 + 3(a+1/a) = 216
a^3 + 1/a^3 + 18 = 216
a^3 + 1/a^3 = 198
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