✓ 2 MARKS
Very Short Answer
🔥 APPEARED IN 3 BOARD SETS
Evaluate $\sin^{-1} \left( \sin \frac{3\pi}{4} \right) + \cos^{-1} (\cos \pi) + \tan^{-1} (1)$.
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2023 | Series 65-2 | Set 1 | Question 21(a) |
| CBSE 2023 | Series 65-2 | Set 2 | Question 22 |
| CBSE 2023 | Series 65-2 | Set 3 | Question 22 |
02 // OFFICIAL CBSE MARKING SCHEME BREAKDOWN
- Step 1: Stating the fundamental formula / law statement (+1 Mark)
- Step 2: Intermediate mathematical substitution or proof steps (+1 Mark)
- Step 3: Correct final value or conclusion with mandatory SI units (+1 Mark)