Question

СРОЧНО !!! 6*корень2*cos(п/4)*cos(7п/3) плиз с решением

Answer 1

6*√2*cos(π/4)*cos(7π/3)=6*√2*(√2/2)*cos(6π/3+π/3)=6*(√2)²/2*cos(π/3)=6*(1/2)=3