A - It 21998 - 21997 - 21996+ 21995 21996+ 21495 = K-21495 Find value of K
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Answer:
The correct option is B 3
2
1998
−
2
1997
−
2
1996
+
2
1995
=
2
1997
(
2
−
1
)
−
2
1995
(
2
−
1
)
=
2
1997
−
2
1995
=
2
1995
(
2
2
−
1
)
=
3
×
2
1995
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