1.

Let f(x) and g(x) be two functions having finite non-zero third order derivatives f′"(x) and g′"(x) or all xϵR. If f(x)g(x)=1 for all xϵR, then f′"f′−g′"g′ is equal to:

Answer»

Let f(x) and g(x) be two functions having finite non-zero third order derivatives f"(x) and g"(x) or all xϵR. If f(x)g(x)=1 for all xϵR, then f"fg"g is equal to:



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