The first 3 terms in the expansion of \[{{(1+ax)}^{n}}\] \[(n\ne 0)\] are 1, 6x and 16x2. Then the value of a and n are respectively [Kerala (Engg.) 2002]

The first 3 terms in the expansion of \[{{(1+ax)}^{n}}\] \[(n\ne 0)\]

1.	The first 3 terms in the expansion of \[{{(1+ax)}^{n}}\] \[(n\ne 0)\] are 1, 6x and 16x2. Then the value of a and n are respectively [Kerala (Engg.) 2002]
A.	2 and 9
B.	3 and 2
C.	2/3 and 9
D.	3/2 and \[6\]
Answer» D. 3/2 and \[6\]

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The first 3 terms in the expansion of \[{{(1+ax)}^{n}}\] \[(n\ne 0)\] are 1, 6x and 16x2. Then the value of a and n are respectively [Kerala (Engg.) 2002]

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