← Trigonometry functions Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Acute Angles sin = opp/hyp Acute Angles cos = adj/hyp Acute Angles tan = opp/adj Acute Angles csc = hyp/opp Acute Angles sec = hyp/adj Acute Angles cot = adj/opp Real Numbers sin s = Y Real Numbers cos s = X Real Numbers tan s = y/x Real Numbers csc s = 1/y Real Numbers sec s = 1/x Real Numbers Cot s = x/y Any Angle sin = y/r Any Angle cos = x/r Any Angle tan = y/x Any Angle csc = r/y Any Angle sec = r/x Any Angle cot = x/y