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What is Trigonometric Derivative Proofs about?

This document provides proofs of the derivatives of common trigonometric functions using algebraic methods. It first proves that the derivative of sin(x) is cos(x) by taking the limit definition of the derivative. It then proves that the derivative of cos(x) is -sin(x) using the chain rule and the known derivative of sin(x). Finally, it proves that the derivative of tan(x) is sec^2(x) using the quotient rule and the known derivatives of sin(x) and cos(x).

Author

Rana Gul Badin Khan

Language

EN