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pratyush4211:
in question it is z or x
it is x
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We know that
x² + 1/x² = ( x + 1/x)² - 2 × x × 1/x
= 3² - 2 = 9 - 2 = 7
(a+b)² ka formula padhi ho ya nhi
yes
but it is not in bracket
u cant see
to phir aise banao
yes
u r right
yes
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here your answer
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