Csir Net/jrf June -2018 mathematics question paper solutions.

Difference equations- Numerical analysis.

Here we have to solve the given difference equations to know whether it's solutions are bounded or unbounded.

For that we convert the delta operator into shift operator.

Here is the problem and solution.

Next problem 

Calculus of variations- 

Here I have provide the method to solve this problem quickly.

You find that only the quadratic polynomial is the possible answer and there is only one option 1 is quadratic polynomial.

Next question- 

Calculus of variations

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Integral equations- 

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