If number of terms in the expansion of \[{{(x-2y+3z)}^{n}}\]are 45, th

1.	If number of terms in the expansion of \[{{(x-2y+3z)}^{n}}\]are 45, then n=
A.	7
B.	8
C.	9
D.	None of these
Answer» C. 9

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If number of terms in the expansion of \[{{(x-2y+3z)}^{n}}\]are 45, then n=

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