state gov Calcutta High Court Lower Division Assistant (LDA) Mock Test 2024 Quantitative Aptitude Algebra Identities
Determine the value of \({\left( {{\rm{y}} - \frac{1}{{\rm{y}}}} \right)^2}\) when \({\rm{\;}}{{\rm{y}}^4}{\rm{}} + {\rm{}}\frac{1}{{{{\rm{y}}^4}}}{\rm{}} = {\rm{}}34\)
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