HOW DO YOU DIFFERENTIATE tan^2(x)? (CHAIN RULE, TANGENT FUNCTION, TRIG DIFFERENTIATION, SECANT)

In this video we use the chain rule to differentiate the function tan^2(x) (the square of the tangent function). We also use our knowledge that the derivative of tan(x) is sec^2(x).

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Видео HOW DO YOU DIFFERENTIATE tan^2(x)? (CHAIN RULE, TANGENT FUNCTION, TRIG DIFFERENTIATION, SECANT) канала A-Level Maths Tutor UK