CBSE Class 12 Mathematics 2026 Main Paper 65(B) · Q345 Marksarea_under_lines
CBSE Class 12 Mathematics 2026 Main Paper 65(B) · Question 34 (Applications Of Integrals)
Find the area bounded by y=3x+2, the x-axis and x=−1, x=1.
✅ Step-by-Step Solution
Final Answer: 13/3 square units.
- The line crosses the axis at x=−2/3.
- Integrate its negative on [−1,−2/3] and its positive on [−2/3,1].
- The pieces are 1/6 and 25/6, giving 13/3.
📋 CBSE Stepwise Marking Scheme
- [1 mark] The line crosses the axis at x=−2/3.
- [3 marks] Integrate its negative on [−1,−2/3] and its positive on [−2/3,1].
- [1 mark] The pieces are 1/6 and 25/6, giving 13/3.
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