Write the value of...A and B
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Answer:
As we know that
a
n
a
m
=a
m−n
and also (a+b)(a−b)=a
2
−b
2
(
x
b
x
a
)
a+b
×(
x
c
x
b
)
b+c
×(
x
a
x
c
)
c+a
=(x
a−b
)
a+b
×(x
b−c
)
b+c
×(x
c−a
)
c+a
=x
a
2
−b
2
×x
b
2
−c
2
×x
c
2
−a
2
=x
a
2
−b
2
+b
2
−c
2
+c
2
−a
2
=x
0
=1
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