if a+1/a=2 , find a cube-1/a cube
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Answered by
2
a+1/a = 2.
then a = 1.
a^3-1/ a = 1^3-1/1
= 1-1 =0..
then a = 1.
a^3-1/ a = 1^3-1/1
= 1-1 =0..
toppers48:
it's wrong
because a=2 given
its a-1/a =2
Answered by
1
If a+1=0
And a=2
Then a cube +1 cube =0
2*2+1*1=0
4+1=0
=5 ans
And a=2
Then a cube +1 cube =0
2*2+1*1=0
4+1=0
=5 ans
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