Math miscellaneousHard
Question
If a1, a2, ......., a2n+1 are in G.P., then 
is equal to (where each ai > 0) -
is equal to (where each ai > 0) -Options
A.a1 + a2 + ..... + a2n-1
B.a2 + a4 + ..... + a2n
C.
D.
Solution
Let r be common ratio
= √r(a1 + a3 + .....+a2n-1) .........(i)
= √2(a2 + a4 + ...... + a2n) ........(ii)
Dividing (i) by (ii)
= √r(a1 + a3 + .....+a2n-1) .........(i)
= √2(a2 + a4 + ...... + a2n) ........(ii)
Dividing (i) by (ii)
Create a free account to view solution
View Solution FreeMore Math miscellaneous Questions
Number of solutions of the equation ex(ex - 2) = 5|ex - 1| - 7 is -...is equal to :...dx equals to :...The system of equations αx + y + z = α - 1, x + αy + z = α - 1, x + y + αz = α - 1 has no ...If (a, a2) falls inside the angle made by the lines y = , x > 0 and y = 3x, x > 0, then a belongs to...