MCQ
For a positive integer $n,$ let $\text{a(n)} =1+\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+…+\frac{1}{\text{n.}} $ Then,
- ✓$a(100) ≤ 100$
- B$a(100) >100$
- C$a(200) ≤ 100$
- DNone of these
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(A)$ The length of the line segment $O A_1$ is $4 \sqrt{3}$
$(B)$ The length of the line segment $A_1 B_1$ is 16
$(C)$ The orthocenter of the triangle $A_1 B_1 C_1$ is $(0,0)$
$(D)$ The orthocenter of the triangle $A_1 B_1 C_1$ is $(1,0)$