a+1/a=√3;a to the power of 3+1/a to the power of 3=?
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a+1/a=√3
cubing on both sides
a^3 +1/a^3 +3(a+1/a) = 3√3
a^3+ 1/a^3 +3√3 =3√3
a^3+1/a^3 =0
cubing on both sides
a^3 +1/a^3 +3(a+1/a) = 3√3
a^3+ 1/a^3 +3√3 =3√3
a^3+1/a^3 =0
jeyakumaravm:
How (√3) cube=3√3
Say fast
(3^1/2)^3
3^3/2
3^(1+1/2)
a^(m+n) = a^m a^n
3^(1+1/2) = 3^1 3^1/2
=3(3^1/2)
=3√3
do you understand
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