This video have problems on partial differential equation using method of seperation of variable
Playlist for S3 Module 1:   • Partial Differential Equation(S3 2019...  
charpits method :   • Charpit's Method|KTU Engineering Math...  
lagranges method of grouping 1    • Lagrange's Linear Equation|KTU Engine...  
method of grouping 2    • Lagrange's Linear Equation More Prob...  
lagranges multiplier method :   • Lagrange's Linear EquationMultiplier...  
S3 (2019) syllabus
Module 1 Partial Differential Equation
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KTU S3 Maths Module 1
Partial differential equation in Malayalam
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partial differential equation in malayalam
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partial differential equation KTU in malayalam
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MAT201 Partial differential equation and Complex analysis in malayalam