Bihar Board 12th Maths Unofficial Answer Key 2026: As scheduled, the Bihar School Examination Board (BSEB) held the Class 12 Mathematics Examination 2026 today, February 3, 2026, from 9:30 AM to 12:45 PM. BSEB Class 12 Maths exam 2026 follows a 100-mark assessment structure, split between a 70-mark theory paper and a 30-mark practical exam. Students who appeared for the Bihar Board Class 12 Maths Theory Examination 2026 can check the Bihar Board 2026 Class 12th Maths Unofficial Answer Key available here.
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Bihar Board 12th Maths Unofficial Answer Key 2026
Students can check the BSEB 2026 Class 12th Maths Unofficial Answer Key available in the table below.
| Bihar Board 2026 Class 12th Maths Questions (SET A) | Bihar Board 2026 Class 12th Maths Answers (SET A) |
| Question 1 | D: -π/6 |
| Question 2 | B: tan inverse 3/4 |
| Question 3 | C: Zero |
| Question 4 | B: 4/5 |
| Question 5 | C: 3π/4 |
| Question 6: | C: 5π/6 |
| Question 7: | C: 3π/4 |
| Question 8: | A: √1-x2/x |
| Question 9: | C: π/4 |
| Question 10: | C: 2tan inverse x |
| Question 11: | C: Zero |
| Question 12: | B: Zero |
| Question 13: | A: +-2 |
| Question 14: | B: Zero |
| Question 15: | B: P=(A U B) |
| Question 16: | A: P(A).P(B).P(C) |
| Question 17: | A: 4/9 |
| Question 18: | B: 7/10 |
| Question 19: | D: n/x |
| Question 20: | C: -4 Sin 2x |
| Question 21: | A: e^x-a |
| Question 22: | B: 2x+a/√x^2+ax+1 |
| Question 23: | A: 2x Cosx^2 |
| Question 24: | C |
| Question 25: | B: Zero |
Bihar Board 2026 12th Maths: Question Paper Analysis
Students can access the Bihar Board 2026 Class 12th Maths Exam Analysis from the table below.
| Particulars | Details |
| Bihar Board 2026 Class 12th Maths Overall Difficulty Level | Moderate |
| Was the Paper Lengthy? | Yes |
| Number of Good Attempts | to be updated |
| Important Topics Asked | to be updated |
The Bihar Board 2026 Class 12th Maths Unofficial Answer Key is prepared by the subject-experts. Students are advised to use the above unofficial answer key to evaluate their performances. Unofficial answer keys are typically released by private coaching institutes and subject experts within a few hours of the exam's conclusion to help students estimate their scores.
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