find the sum of the series 1/9+1/18+1/30+1/45+1/63+..............
1/3
1/4
1/5
2/3
let f(x)=ax/x+1, x is not equal to -1, then for what value of a is f(f(x))=x?
2
-2
1
-1
Period of the function f(x)=1/3{sin 3x+|sin x|+[sin 3x]} where [ ] denotes greatest integer function.
22/(7*3) (* denotes multiplication)
(22*3)/7
22/7
none of these
let f be a real valued function satisfying f(x+1)+f(x-1)=2f(x), for all x belongs to R and f(0)=0, then for any nbelongs to N,
f(n)=
nf(1)
f(1)/n
0
23
if f(x) is an odd periodic function with period 2, then f(4) equals
-4
4
2
0