UPSC NDA I 2022 Mathematics Solved Paper
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Question : 14 of 120
Marks:
+1,
-0
What is the value of
C ( 51 , 21 ) − C ( 51 , 22 ) + C ( 51 , 23 ) −
C ( 51 , 24 ) + C ( 51 , 25 ) − C ( 51 , 26 ) +
C ( 51 , 27 ) − C ( 51 , 28 ) + C ( 51 , 29 ) −
C ( 51 , 30 ) ?
[NDA-I 2022]
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