Which term is `81` of `1`,`sqrt3`,`3` ,`..?`

Which term of the progression sqrt(3),3,3sqrt(3)... is 729 ?

Which term of the GP sqrt(3), 1/sqrt(3), 1/(3sqrt(3)), 1/(9sqrt(3)) , ... Is 1/(729sqrt(3)) ?

Which term of the G.P:: sqrt(3),3,3,sqrt(3), is 729?

Verify the following is an A.P. or not, and then write its next three terms. sqrt3 , 2 sqrt3, 3 sqrt3,...

Which term of the G.P. {sqrt(2),sqrt(6), 3sqrt(2), 3 ,sqrt6 is 243sqrt2 ?

Which term of the AP,21,18,15,... is -81?

Which term of the AP 21, 18, 15, … is -81?