If \[{{D}_{r}}=\left| \begin{matrix} {{2}^{r-1}} & {{2.3}^{r-1}} & {{4.5}^{r-1}} \\ x & y & z \\ {{2}^{n}}-1 & {{3}^{n}}-1 & {{5}^{n}}-1 \\ \end{matrix} \right|\], then the value of \[\sum\limits_{r=1}^{n}{{{D}_{r}}=}\]

If \[{{D}_{r}}=\left| \begin{matrix} {{2}^{r-1}} & {{2.3}^{r-1}} & {{

1.	If \[{{D}_{r}}=\left\| \begin{matrix} {{2}^{r-1}} & {{2.3}^{r-1}} & {{4.5}^{r-1}} \\ x & y & z \\ {{2}^{n}}-1 & {{3}^{n}}-1 & {{5}^{n}}-1 \\ \end{matrix} \right\|\], then the value of \[\sum\limits_{r=1}^{n}{{{D}_{r}}=}\]
A.	1
B.	-1
C.	0
D.	None of these
Answer» D. None of these

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If \[{{D}_{r}}=\left| \begin{matrix} {{2}^{r-1}} & {{2.3}^{r-1}} & {{4.5}^{r-1}} \\ x & y & z \\ {{2}^{n}}-1 & {{3}^{n}}-1 & {{5}^{n}}-1 \\ \end{matrix} \right|\], then the value of \[\sum\limits_{r=1}^{n}{{{D}_{r}}=}\]

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