if a²-3a-1 = 0 find the value
a² +1/a²
Answers
Answered by
4
Answer:
a
2
−3a−1=0
=>a
2
−1=3a
=>a−
a
1
=3
Squaring both sides,
=>(a−
a
1
)
2
=3
2
=>a
2
+
a
1
2
−2(a)(
a
1
)=9
=>a
2
+
a
1
2
=9+2
=11
Answered by
1
Answer:
hi please drop some thankz fore
Similar questions