CrossFit415 Messages 160 Reaction score 0 Thread starter Apr 6, 2011 #1 Homework Statement Cot (a- B) = (cot a cot b + 1) / cot B - cot a So.. Could I use tan (a-B) ? I couldn't find any special formulas for cot's. Homework Equations The Attempt at a Solution
Homework Statement Cot (a- B) = (cot a cot b + 1) / cot B - cot a So.. Could I use tan (a-B) ? I couldn't find any special formulas for cot's. Homework Equations The Attempt at a Solution
Dick Science Advisor Homework Helper Messages 26,254 Reaction score 623 Apr 6, 2011 #2 Sure, try it. cot(A-b)=1/tan(A-b). Use your identity on the tan(A-b) part and try and show it reduces to the right side of the identity.
Sure, try it. cot(A-b)=1/tan(A-b). Use your identity on the tan(A-b) part and try and show it reduces to the right side of the identity.