Come si rappresenta y = -1 / 2cosx y=−12cosx?
Risposta:
"the solution of your problem is on the figure"the solution of your problem is on the figure
Spiegazione:
"give random angle values to x such as "-pi,-pi/2,0,pi/2,pi,...
"for x="-pi" " rArr" "y=-1/2*cos(-pi)=0.5
"for x="-pi/2" " rArr" "y=-1/2*cos(-pi/2)=0
"for x="0" " rArr" "y=-1/2*cos(0)=-0.5
"for x="pi/2" " rArr" "y=-1/2*cos(pi/2)=0
"for x="pi" " rArr" "y=-1/2*cos(pi)=0.5