Class 12 Continuity And Differentiability · Conceptual Answer1 Markssecond_derivatives
Class 12 Maths · Continuity And Differentiability · Conceptual Answer #45
For y=5e^(7x)+6e^(−7x), show y″=49y.
✅ Step-by-Step Solution
Final Answer: y″=49y
- Twice differentiating gives y″=245e^(7x)+294e^(−7x)=49[5e^(7x)+6e^(−7x)].
- y″=49y
📋 CBSE Stepwise Marking Scheme
- [0.5 marks] Twice differentiating gives y″=245e^(7x)+294e^(−7x)=49[5e^(7x)+6e^(−7x)].
- [0.5 marks] y″=49y
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