Sequences and Series
Let a,b ,c be positive integers such that ab is an integer. If a,b,c are in GP and the arithmetic mean of a,b,c, is b+2 then the value of a+1a2+a−14 is
Connecting you to a tutor in 60 seconds.
Get answers to your doubts.
GM between 0.15 and 0.015 is
The geometric mean of 4.9 and 0.4 is
A student scored marks 46 % in English, 67 % in Maths, 53 % in Hindi, 72 % in History and 58 % in Economics. As compared to other subject weightage given to Mathematics, then find weightage mean marks of students.
If the distinct points on the curve y=2x4+7x3+3x−5 are collinear, then find the arithmatic mean of x-coordinates of the aforesaid points
There are n AM's between 1&31 such that 7th mean: (n−1)th mean =5:9, then find the value of n.
If a,b,c∈R+, then the minimum value of a(b2+c2)+b(c2+a2)+c(a2+b2) is equal to
If the mean of 5 observations x,x+2,x+4,x+6 and x+8 is 11, find the value of x.
Find the geometric mean between 16 and 81.