This video has problems on Lagrange's Linear Equation multiplier method
Lagranges linear equation problems related to this topic
method of grouping 1    • Lagrange's Linear Equation|KTU Engine...  
method of grouping 2    • Lagrange's Linear Equation More Prob...  
multiplier method :   • Lagrange's Linear EquationMultiplier...  
S3 (2019) syllabus
Module 1 Partial Differential Equation
BTech Mathematics
KTU
MAT201
KTU Maths
KTU Engineering Mathematics
KTU S3 Maths Module 1
Partial differential equation in Malayalam
TRACE KTU Maths
KTU Online Study
Engineering Maths Tutor Malayalam
KTU S3 Maths Module 1
partial differential equation in malayalam
partial differential equation KTU
partial differential equation KTU in malayalam
KTU S3 maths in malayalam
Partial Differential Equation and Complex Analysis
MAT201 Partial differential equation and Complex analysis
thus video will help you to understand how to apply multiplier in langranges linear equation