Question

If F= asinß - B cosa , then find Faa​

Answer 1

Your answer is in attachment.

Hope it's help you.

Answer 2

The value of $Faa$ is $a^{3} sinB-Ba^{2} cosa$

Given:      

          $F=asinB-Bcosa$

We multiply both sides of above equation by $a.a$

       $Faa=a^{3} sinB-Ba^{2} cosa$