If a=√8-√7 , b=√7-√6 and c=√6-√5 then ....
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Answer:
a=
11
+
3
a
2
=11+3+2
33
=14+2
33
b=
12
+
2
b
2
=14+2
24
As
33
>
24
,a
2
>b
2
,a>b
c=
6
+
4
c
2
=10+2
24
As 14>10,b
2
>c
2
,b>c
Hence, a>b>c.
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