if x+1/x=6 find I)x^2+1/x^2
Answers
Answered by
6
Answer:
x+
x
1
=6
⇒(x+
x
1
)
2
=x
2
+
x
2
1
+2x.
x
1
=x
2
+
x
2
1
+2
⇒x
2
+
x
2
1
=(x+
x
1
)
2
−2=6
2
−2=34
⇒(x
2
+
x
2
1
)
2
=x
4
+
x
4
1
+2x
2
.
x
2
1
=x
4
+x
4
+
x
4
1
+2
⇒x
2
+
x
2
1
=(x
2
+
x
2
1
)
2
−2=34
2
−2
=1154.
Hence, the answer is 1154.
Answered by
2
Answer:
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Step-by-step explanation:
Solution :
Given ,
<br> Taking squares on both the sides , we get <br>
<br>
<br>
<br> Hence , the correct option is (a)
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