3.Review of trigonometry_SATC_P1_CIE
1. Quadrant
2. SATC
?STEP 1


Decide if the ratio you need to find (usually sin, cos or tan) is positive ? or negative??in the quadrant you found in step 1?(most students use CAST to remember the signs)


標簽:
?STEP 1
Decide if the ratio you need to find (usually sin, cos or tan) is positive ? or negative??in the quadrant you found in step 1?(most students use CAST to remember the signs)