[" In an "AP,t_(7)=15," find the value of common difference,d that would make the value of "t_(2)t_(7)t_(12)],[" maximum."]

In an A.P.t_(7)=15 then the value of common differenced that would make t_(2)t_(7)t_(12) greatest is

For an A.P. a=25 and t_(20)=500. Find the common difference d.

If a_n be the term of an A.P. and if a_7=15 , then the value of the common difference that could makes a_2a_7a_12 greatest is:

For an A.P, a=25 and t_20=500 . Find the common difference d.

For an A.P. , t_(3)=7 and t_(4)=3, Find the common difference and the first term.

If first term = a, common ratio = r, then find the value of t_(9)" and "t_(27) .

If for an A.P., d=10 , what is the value of t_(6)-t_(2) ?

If for an A.P., d=20, what is the value of t_6-t_2?

If first term=a, common ratio=r then find the value of t_(27)=____.