Cosa sono i sec 180 gradi?
Risposta:
#-1#
Spiegazione:
#"using the "color(blue)"trigonometric identity"#
#•color(white)(x)sectheta=1/costheta#
#cos180^@=-1#
#rArrsec180^@=1/(-1)=-1#
#-1#
#"using the "color(blue)"trigonometric identity"#
#•color(white)(x)sectheta=1/costheta#
#cos180^@=-1#
#rArrsec180^@=1/(-1)=-1#