If the coefficients of second, third and fourth term in the expansion of \[{{(1+x)}^{2n}}\] are in A.P., then \[2{{n}^{2}}-9n+7\] is equal to [AMU 2001; MP PET 2004]

If the coefficients of second, third and fourth term in the expansion

1.	If the coefficients of second, third and fourth term in the expansion of \[{{(1+x)}^{2n}}\] are in A.P., then \[2{{n}^{2}}-9n+7\] is equal to [AMU 2001; MP PET 2004]
A.	-1
B.	0
C.	1
D.	44230
Answer» C. 1

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If the coefficients of second, third and fourth term in the expansion of \[{{(1+x)}^{2n}}\] are in A.P., then \[2{{n}^{2}}-9n+7\] is equal to [AMU 2001; MP PET 2004]

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