WBJEE 2012 Math Solved Paper
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Question : 10 of 80
Marks:
+1,
-0
Let ( 1 + x ) 10 =
c r x r and ( 1 + x ) 7 =
d r x r .
If P =
c 2 r and Q =
d 2 r + 1 , then
is equal to
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