Differentiation and Integration of Trigonometric Functions is quite a challenging topic. The Additional Math question in the photo is one fine example.

a) Differentiate the trigonometric function using chain rule. Don’t forget the differentiate x^{2}+2x inside the bracket.

b) You are required to integrate the product of two expressions . As there is **NO** **product rule** for Integration we use the answer for **part a **to indirectly find the answer.

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Additional Math Sec 3 , Sec 4 Tuition for students in Choa Chu Kang, Yew Tee, Yishun and Sembawang.