Question

if x = 5 - 2V6 , find the value of x2 +X2/
22​

Answer 1

Step-by-step explanation:

X=5-2√6

∴, x²=(5-2√6)²=25-2.5.2√6+24=49-20√6

1/x²=1/(5-2√6)²=1/(49-20√6)=(49+20√6)/(49-20√6)(49+20√6)=(49+20√6)/(2401-2400)=49+20√6

∴, x²+1/x²=49-20√6+49+20√6=98

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Answer 2

Answer:

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