If the coefficients of \[{{T}_{r}},\,{{T}_{r+1}},\,{{T}_{r+2}}\] terms of \[{{(1+x)}^{14}}\] are in A.P., then r = [Pb. CET 2002]

If the coefficients of \[{{T}_{r}},\,{{T}_{r+1}},\,{{T}_{r+2}}\] terms

1.	If the coefficients of \[{{T}_{r}},\,{{T}_{r+1}},\,{{T}_{r+2}}\] terms of \[{{(1+x)}^{14}}\] are in A.P., then r = [Pb. CET 2002]
A.	6
B.	7
C.	8
D.	9
Answer» E.

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If the coefficients of \[{{T}_{r}},\,{{T}_{r+1}},\,{{T}_{r+2}}\] terms of \[{{(1+x)}^{14}}\] are in A.P., then r = [Pb. CET 2002]

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