what to do next solve please
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Solution:
It is given that,
a + 1/a = p ----(1)
___________________
We know the algebraic identity:
(x+y)³ = x³+y³+3xy(x+y)
___________________
a³+1/a³+3*a*1/a(a+1/a)=(a+1/a)³
=> a³+1/a³+3(a+1/a)=(a+1/a)³
=> a³+1/a³+3p=p³ [from(1)]
=> a³+1/a³ = p³-3p
••••
It is given that,
a + 1/a = p ----(1)
___________________
We know the algebraic identity:
(x+y)³ = x³+y³+3xy(x+y)
___________________
a³+1/a³+3*a*1/a(a+1/a)=(a+1/a)³
=> a³+1/a³+3(a+1/a)=(a+1/a)³
=> a³+1/a³+3p=p³ [from(1)]
=> a³+1/a³ = p³-3p
••••
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