SubArea: Trigonometric equations and inequalitiesLevel: AProject ID: 9000086710Source Problem: 2010010704Accepted: 1Clonable: 1Easy: 0Identify the equation which arises from the following equation using an optimal substitution. 2tgx+3cotgx=52t2−5t=−32t2+3t−5=02t=352t+3t=5