X²+1/x²=38,then what is x²-1/x² equal to?
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X²+1/x²=38
or X²=37X²-1
or 37X²=1
or X²=1/37
putting value in x²-1/x²=(1/37-1)/1/37
=37(-36/37)
=-36
or X²=37X²-1
or 37X²=1
or X²=1/37
putting value in x²-1/x²=(1/37-1)/1/37
=37(-36/37)
=-36
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