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What is Limits of Trigonometric Functions about?

(1) By comparing the areas of geometric shapes formed by an angle θ on the unit circle, the document shows that: (a) The limit of any trigonometric function T(x) as x approaches a number c within the domain of T is equal to T(c). (2) It also shows that: (b) The limit of the sine ratio sin(θ)/θ as θ approaches 0 is equal to 1. (3) Finally, it proves that: (c) The limit of the expression (cos(θ) - 1)/θ as θ approaches 0 is equal to 0.

Author

Trent Dennis

Language

EN