1.

If the integral of the function sin(80x)sin78x is sinaxsinbxc+D, where a,b,c∈R and D is the constant of integration, then the value of a+b+c is equal to

Answer»

If the integral of the function sin(80x)sin78x is sinaxsinbxc+D, where a,b,cR and D is the constant of integration, then the value of a+b+c is equal to



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