MCQ
If $1+\sin ^2 \alpha=3 \sin \alpha \cos \alpha$, then the values of $\cot \alpha$ are
- A$-1,1$
- B0,1
- ✓1,2
- D$-1,-1$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

| Height $($in $\ cm)$ | No. of Students | Cumulative Frequency |
| $150-155$ | $16$ | $16$ |
| $155-160$ | $12$ | $28$ |
| $160-165$ | $9$ | $37$ |
| $165-170$ | $7$ | $44$ |
| $170-175$ | $10$ | $54$ |
| $175-180$ | $6$ | $60$ |