A=x-1/x+1then the value of A-1/A
Answers
Answered by
1
Step-by-step explanation:
f(f(x))=
x+1
ax
+1
a
x+1
ax
=
x+1
ax+x+1
x+1
a
2
x
=
ax+x+1
a
2
x
Since, f(f(x))=x, we have,
ax+x+1
a
2
x
=x.
Simplifying the equation we get,
a
2
x=(a+1)x
2
+x
∴(a+1)x
2
+(1−a
2
)x=0
or (a+1)x(x+1−a)=0
Hence the only possible value is a=−1
Answered by
0
Answer:
hope u understand this sol... thanx choose me brill.
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