Using Site Bases to evaluate Trigonometric Attributes A direction in the 1st quadrant is its very own reference perspective. To possess a direction on the second or 3rd quadrant, the brand new reference perspective is actually \(|??t|\)or \(|180°?t|\). To possess a position on the fourth quadrant, the brand new reference angle is \(2??t\) or \(360°?t.\) […]