Question

sin3t+√ 3cost,при t=π / 3

Answer 1

$t=frac{pi}{3}$

 

$sin3t+sqrt{3}cost=sin(3*frac{pi}{3})+sqrt{3}cosfrac{pi}{3}=sinpi+sqrt{3}*frac{1}{2}=$

 

$=0+frac{sqrt{3}}{2}=frac{sqrt{3}}{2}$