✓ 2 MARKS
Very Short Answer
🔥 APPEARED IN 3 BOARD SETS
(a) Find the domain of $y = \sin^{-1} (x^2 - 4)$.
OR
(b) Evaluate :
$$\cos^{-1} \left[ \cos \left( - \frac{7\pi}{3} \right) \right]$$
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2023 | Series 65-4 | Set 1 | Question 21 |
| CBSE 2023 | Series 65-4 | Set 2 | Question 23 |
| CBSE 2023 | Series 65-4 | 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)