✓ 4 MARKS
Case Study
🔥 APPEARED IN 3 BOARD SETS
(a) Find : $\int \cos x \cdot \tan^{-1}(\sin x) \, dx$ OR (b) Find : $\int \frac{e^x}{(e^x + 1)(e^x + 3)} \, dx$
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2022 | Series 65-6 | Set 1 | Question 12 |
| CBSE 2022 | Series 65-6 | Set 2 | Question 13 |
| CBSE 2022 | Series 65-6 | Set 3 | Question 11 |
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)