if ( f(x)=5xsin xcos x ), find ( f(x)=\frac{5}{2}sin(2x)+5xcos(2x) ) find ( f(5)=-8.41 )
if ( f(x)=5xsin xcos x ), find ( f(x)=\frac{5}{2}sin(2x)+5xcos(2x) ) find ( f(5)=-8.41 )
Answer
Answer:
Mathematics: Calculus
( f'(x)=\frac{5}{2}\sin(2x)+5x\cos(2x) )
( f'(5)=-8.4 )