Which inequality is true for n≥1n \geq 1n≥1?
12n+1<12n\frac{1}{2^n+1} < \frac{1}{2^n}2n+11<2n1
12n+1>12n\frac{1}{2^n+1} > \frac{1}{2^n}2n+11>2n1
nn+1<1\frac{n}{n+1} < 1n+1n<1
All of the above