textbook-theory · English
Tangent, Cotangent, Secant, and Cosecant
A four-page calculus lecture note deriving the quotient rule and applying it to define and differentiate the four remaining trigonometric functions: tangent, cotangent, secant, and cosecant. Each function's domain, range, period, symmetry, and vertical asymptotes are detailed, and worked examples demonstrate use of the quotient rule and chain rule to differentiate composite trigonometric expressions.
trigonometric functionscalculusdifferentiationquotient rule