Question

if a+1/a=6 then the find the value of a3 + 1/a3​

Answer 1

Answer: 8/3

Step-by-step explanation:

a+1/a= 6 , a+1 = 6a , 5a = 1 , a=1/5

3a+1/3a     =   { ( 3 . 1/5 ) +1 } / 3/5  = [ 3+ 5] / 3  = 8/3

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