NCERT Class 12 · Ch 9 Exercise 9.1 · Q11
NCERT Class 12 Maths · Chapter 9 Differential Equations · Exercise 9.1 Question 11
Find the degree of (y″)³+(y′)²+sin(y′)+1=0.
💡 Concept Hints
- Identify the domain and the inner and outer functions, or the relevant one-sided limits.
- Apply the appropriate differentiation or limit rule, keep all chain factors, and check exceptional points.
✅ Step-by-Step Solution
Final Answer: D: not defined.
- The term sin(y′) is not polynomial in the derivatives.
- The exponent 3 on y″ does not define a degree when the polynomial requirement fails.
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