यदि 1+(1/2)+(1/3)+.....+(1/20)=k है, त...

यदि `1+(1/2)+(1/3)+.....+(1/20)=k` है, तो `(1/4)+(1/6)+(1/8)+.......+(1/40)` का मान क्या है ?

A

`k/2`

B

`2k`

C

`((k-1))/2`

D

`((k+1))/2`

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

Promotional Banner

Promotional Banner

Recommended Questions

यदि 1+(1/2)+(1/3)+.....+(1/20)=k है, तो (1/4)+(1/6)+(1/8)+.......+(1...
Text Solution
|
{:("Column -I"," Column-II"),((A)log(2)x=-log(1/2)7" है , तो का मान है...
Text Solution
|
If a+a^2+a^3-1=0, then what is the value of a^3 + (1//a)? यदि a+a^2+...
Text Solution
|
If (1//2^1)+(1//2^2)+(1//2^3).....+(1//2^10)= 1//k , then what is the ...
Text Solution
|
If [x-(1//x)] = 2 , then what is the value of [x^6-(1//x^6)] ? यदि [x-...
Text Solution
|
If a+1/a=3 , then (a^4+1/a^4) is equal to : यदि a+1/a=3 है, तो (a^4+1/...
Text Solution
|
If sqrtx- 1/sqrtx=4 , then x^2+1/x^2 is equal to: यदि sqrtx- 1/sqrtx=4...
Text Solution
|
If sqrtx+ 1/sqrtx=sqrt 6 , then x^2+1/x^2 is equal to: यदि sqrtx+ 1/sq...
Text Solution
|
If sqrtx- 1/sqrtx=6 , then x^2+1/x^2 is equal to: यदि sqrtx- 1/sqrtx=6...
Text Solution
|