if x2+1/x2=27 find the value of x4+1/x4
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17
Answer:
727
Step-by-step explanation:
x²+1/x² = 27
(x²+1/x²)² = 27²
x⁴+1/x⁴ + 2x².1/x² = 729
x⁴+1/x⁴+2=729
∴x⁴+1/x⁴=727
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0
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