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Introduction to Partial Differential equations(Basics) (in Hindi)
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Introduction to partial differential equation and second order partial differential equation

Yash Dixit
B.Tech(ECE) from AKTU LUCKNOW. Follow me for GATE. Motivational Speaker. YouTuber [ channel - GATE ! way Education] Former Intern at AAI.

Comments
(7)
Unacademy user
thanks a lot for making such nice course!!!
Sir the concept is d^2 f / dxdy we differentiate firstly with respect to y then with respect to x then sir how could you differentiate firstly with respect to y then with respect to x in SLIDE 5
Yash Dixit
8 months ago
Thanks anubhav for your response let me clear your doubt.... d^2/dxdy or d^2/dydx both are equal either you first differentiate with respect to x and then y or first with respect to y and then x you will get same answer because both are correct...
Yash Dixit
8 months ago
you can choose any one both are correct and you will get same answer..
Yash Dixit
8 months ago
Solve by other one you will get answer as 1.
Anubhav Singh
8 months ago
sir in this question result is same in both case but some book give the concept d^2 f / dxdy is not equal to d^2 f /dydx . sir it is a big doubt for me.
Yash Dixit
8 months ago
no it is correct in both way the differentiation comes different but at last answer is same both approaches is right and it is strictly related to Gate don't worry try to solve questions by your and I will also start crash course of Engg Maths in that I will cover gate variety questions don't worry you can follow me you will recieve notification..
u explain very easily thanks
Such a nice video of maths
Yash Dixit
10 months ago
Thanks
Yash Dixit
10 months ago
thanks
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