tristanthecat
04.02.2020 •
Mathematics
If x=3+2root2,find the value of xsquare+1/xsquare
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Ответ:
34.
Step-by-step explanation:
x = 3 + 2√2
x^2 = (3+2√)^2
= 9 + 8 + 12√2
= 17 + 12√2
x^2 + 1 /x^2
= (17 + 12√2)^2 + (1 / (17 + 12√2)
= 34.
Ответ:
The answer is D.
Step-by-step explanation:
72 divided by 12=6
6 times 1/3=2