1.

If a1, a2, a3, _ _ _ _ _, a9 are in GP, then what is the value of the following determinant?\(\left| {\begin{array}{*{20}{c}} {{ln\:a_1}}&{{ln\:a_2}}&{{ln\:a_3}}\\ {{ln\:a_4}}&{{ln\:a_5}}&{{ln\:a_6}}\\ {{ln\:a_7}}&{{ln\:a_8}}&{{ln\:a_9}} \end{array}} \right|\)

A. 0
B. 1
C. 2
D. 4
Answer» B. 1


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