SUY RA COS Α = 10SIN Α = 1010

3 , - BAI TAP TRAC NGHIEM HE THUC LUONG TRONG TAM GIAC VUONG HH9 CHUONG 1 FULL DAP AN
BAI TAP TRAC NGHIEM HE THUC LUONG TRONG TAM GIAC VUONG HH9 CHUONG 1 FULL DAP AN

3 , suy ra cos α =

10

sin α =