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Help please
Advance maths question here
Simplify :
1/a^l+a^-m+1+1/a^m+a^-n+1+1/a^n-a^-l+1
Answers
Answered by
1
Step-by-step explanation:
=(a
m−n
)
m+n
.(a
n−l
)
n+l
.(a
l−m
)
l+m
=a
m
2
−n
2
+n
2
−l
2
+l
2
−m
2
=a
0
=1
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