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Grade: 12th pass

                        

A repunit is a number that contains only the digit 1, and the repunit of n digits is denoted by r(n)= 11111...1111 there are total n1 If f(x)= 90x 2 +20x 2 +1 then find the sum of digits of the number f(r(10))

5 years ago

Answers : (4)

Gman Namg
420 Points
							
i think 21
 
5 years ago
Gman Namg
420 Points
							
21
5 years ago
grenade
2061 Points
							
it will be 21
5 years ago
ng29
1698 Points
							
ANSWER WILL BE 21
5 years ago
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