Progression (Sequence and Series)Hard
Question
The sum of n terms of the series log a + log 
+ log 
+ ... is-
+ log + ... is-Options
A.n log 
B.n log (ab)
C.
log
log (ab)
loglog (ab)D.log
log (ab)
loglog (ab)More Progression (Sequence and Series) Questions
For a frequency distribution, the mean deviation about mean is computed by...If H is H.M. between two numbers a and b, thenequals -...Let the sequence a1, a2, a3, ......, an form an A.P., then a12 − a22 + a32 − a42 + ...... + a2n−12 ...Let a1, a2, ......, a10 be in A.P. & h1, h2, ...... h10 be in H.P.. If a1 = h1= 2 & a10 = h10 = 3 then a4h7 is -...If x1, x2, x3 as well as y1, y2, y3 are in GP with the same common ratio, then the points (x1, y1), (x2, y2) and (x3, y3...