Guys pls tell me the answer for this question, and please also tell the steps how to solve it
If x ^ 2 = 3x - 1 , then the value of X^6 +1/X³ is :
Answers
Answered by
0
Answer:
5
x
2
−3x+1
∴x
2
+1=3x⇒
x
x
2
+1
=
x
3x
⇒x+
x
1
=3
x
2
+
x
1
2
=(x+
x
1
)
2
−2=(3)
2
−=9−2=7
We know
(x−
x
1
)
2
=x
2
+
x
1
2
−2⇒7−2=5
∴x−
x
1
=
5
Similar questions