11 A level Mathematics Calculus Differentiating Trig Functions from First Principles Part1 Video 6

In this video, we embark on part one of differentiating trigonometric functions from first principles in our A Level Mathematics calculus series. We will utilize the definition of the derivative and apply it to simple trigonometric functions, specifically focusing on finding the derivative of sine x. This process involves understanding and using small angle approximations for sine and cosine, which are crucial for deriving the derivative of sine x. We'll explore how the compound angle formula for sine helps us rewrite f(x+h) and then simplify the limit expression using approximations. Subscribe to @AxiomTutoringCourses for more A Level Mathematics tutorials.