Activity No. 2.1 Instructions Evaluate the following integrals in a short/long bond paper size. Round off your answer up to 2 decimals, if applicable. Show your complete solution and box your final answer. Copy and answer. 1 1. fax . arctan(2x) dx (integration by parts) 2. [2v3 to dt vez (trigonometric substitution) 3. [ evx dx (algebraic substitution) 4. J sin t+cost+ (half angle substitution)