CH- ALGEBRIC EXXPRESSION and IDENTITES
Q.IF(x+1/x)=root2,FIND THE VALUE OF x²+1/x²and x⁴+1/x⁴.
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Answered by
1
Answer:
x
4
+
x
4
1
=6239
⇒(x
2
+
x
2
1
)
2
−2=6239
⇒x
2
+
x
2
1
=
6239+2
⇒x
2
+
x
2
1
=
6241
=79
⇒(x+
x
1
)
2
−2=79
⇒x+
x
1
=
79+2
=
81
=9
Answered by
2
Answer:
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