MCQ
In ΔABC, `(sin(B - C))/(sin(B + C))` = ______
- A`a^2/(b^2 + c^2)`
- ✓`(b^2 - c^2)/(a^2)`
- C`a^2/(b^2 - c^2)`
- D`(b^2 + c^2)/(a^2)`
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

| X = x | -4 | -3 | -2 | -1 | 0 | 1 | 2 |
| P(X = x) | 0.25a | 0.20a | 0.15a | 0.10a | 0.05a | 0.10a | 0.15a |
Then P(X is not a natural number) = ______