please help it's urgent.
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Hi ,
It is given that ,
x + 1/x = 4 ---( 1 )
Do the square of equation ( 1 ),
( x + 1/x )² = 4²
x² + 1/x² + 2 = 16
x² + 1/x² = 16 - 2
x² + 1/x² = 14 --( 2 )
Again do the square of equation ( 2 ),
( x² + 1/x² )² = 14²
x⁴ + 1/x⁴ + 2 = 196
x⁴ + 1/x⁴ = 196 - 2
= 194
I hope this helps you.
:)
ShafaqQaisar:
why did you added 2 to every equation
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3
hope this will help u
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