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6 Oct 2020
Assume that all the given functions have continuous second-order partial derivatives.
Show that any function of the form 
is a solution of the wave of the equation 
[Hint: Let 
.]
Assume that all the given functions have continuous second-order partial derivatives.
Show that any function of the form is a solution of the wave of the equation
[Hint: Let .]
Jyotsana PrakashLv10
24 Jan 2021
has a removable discontinuity at 
? If the discontinuity is removable, find a function 
that agrees with 
and is continuous at 
and 