Calc Question Help

[little rapids]

Can someone explain how to do this?

[eager hawk]

Using the Fundamental theorem of calculus, \ \ $F(x)=\cos((3x)^6)\frac{d}{dx}(3x)-\cos(x^6) \frac{d}{dx}(x) \ \ $=3\cos(729x^6)-\cos(x^6)$

[stone kindle]

Civil Service Exam is good
Compile Error! Click the reaction for more information.
(You may edit your message to recompile.)

[eager hawk]

@little rapids