If `f(x) + f(x + 4) = f(x + 2) + f(x + 6) AA x in R, and f(5)=10,` then `sum_(r=1)^100 f(5+8r)` equal to

If (x)+f(x+4)=f(x+2)+f(x+6)AA x in R, and f(5)=10 then sum_(r=1)^(100)f(5+8r) equal to

lf f: R rarr R satisfies, f(x + y) = f(x) + f(y), AA x, y in R and f(1) = 4, then sum_(r=1)^n f(r) is

If f : R to R is defined as f (x+ y) = f (x) + f (y) AA x, y in R and f (1) = 7, then find sum _(r =1) ^(n) f (r).

If f:R rarr R satisfies,f(x+y)=f(x)+f(y),AA x,y in R and f(1)=4,thensum_(r=1)^(n)f(r)

If f:R to R is defined as f(x+y)=f(x)+f(y) AA x,y in R and f(1) = 7 , find sum_(r=1)^(n)f(r ) .

if f: 9R to 9R satisfies f(x+y)=f(x)+f(y) , for all x, y , in 9 R and f(1)=10 then sum_(r=1)^(n) f(r)

Let f:R rarr R^(*) be a derivable function such that f(x+y)=3f(x)f(y),AA x,y in R with f(1)=(2)/(3) ,then sum_(r=1)^(oo)(1)/(f(r)) is equal to

Let f(x)=x+f(x-1) for AA x in R.If f(0)=1, find f(100)