if x+1/x=2, find x^2+1/x^2 and x^3+1/x^3
Answers
Answered by
1
Answer:(x+
x
1
)
2
=x
2
+
x
2
1
+2×x×
x
1
⇒(3)
2
=x
2
+
x
2
1
+2
⇒9=x
2
+
x
2
1
+2
⇒x
2
+
x
2
1
+2=9
⇒x
2
+
x
2
1
=9−2=7
∴x
2
+
x
2
1
=7
Step-by-step explanation:
Answered by
0
Answer:
x^2+1/x^2= x^3+1/x^3= 2
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