Ex 9.3, 23 (MCQ) - Chapter 9 Class 12 Differential Equations
Last updated at Dec. 16, 2024 by Teachoo
Variable separation - Equation given
Ex 9.3, 23 (MCQ)
You are here
You are here
Chapter 9 Class 12 Differential Equations
Concept wise
- Order and Degree
- Gen and Particular Solution
- Formation of Differntial equation when general solution given
-
Variable separation - Equation given
- Variable separation - Statement given
- Solving homogeneous differential equation
- Solving Linear differential equations - Equation given
- Solving Linear differential equations - Statement given
Transcript
Ex 9.3, 23 The general solution of the differential equation 𝑑𝑦/𝑑𝑥=𝑒^(𝑥+𝑦) is (A) 𝑒^𝑥+𝑒^(−𝑦)=𝐶 (B) 𝑒^𝑥+𝑒^𝑦=𝐶 (C) 𝑒^(−𝑥)+𝑒^𝑦=𝐶 (D) 𝑒^(−𝑥)+𝑒^(−𝑦)=𝐶 𝑑𝑦/𝑑𝑥 = 𝑒^(𝑥 + 𝑦) 𝑑𝑦/𝑑𝑥 = 𝑒^(𝑥 ) 𝑒^( 𝑦) 𝒅𝒚/𝒆^𝒚 = 𝒆^(𝒙 ) 𝒅𝒙 Integrating both sides ∫1▒𝑒^(−𝑦) 𝑑𝑦= ∫1▒𝑒^𝑥 𝑑𝑥 〖−𝒆〗^(−𝒚) = 𝒆^𝒙+𝒄 𝑒^𝑥 + 𝑒^(−𝑦) = C So, the correct answer is (a)
