Q - 1:  determine the temperature u(x,t) from the heat equation in a laterally insulated copper bar 80 cm long with  c² =1.158 cm²/sec If the initial temperature is represented by the below graph and the ends are kept at 0⁰c

pls solve it stepwisely i posted it about 4-6 time but no one has solved it yet pls i want it soon thanks.....

f(x) 1 1/2 y=x^2 1/2 3/2