The sine circular function which is one of the important trigonometric functions with given arguments in degrees or radians can be used to illustrate the infinitesimal calculus of circular infinity. The derivative of sin(x) is defined as cos(x), and cosine is another important complementary circular trigonometric function. However, the derivative of cos(x) is negative sin(x) such that the nth derivative of sin(x) is sin(x) if n takes the sequence of integer values: 4,8,12,16,...each succeeding number is 4 more than the previous number. The nth derivative of sin(x) is cos(x) if n takes the sequence: 1,5,9,13,…, again, each succeeding number is greater by 4. The nth derivative of sin(x) is negative sin(x) if n has the sequence: 2,6,10,14,18,…,again, the larger number is greater by 4 than its predecessor. The nth derivative of sin(x) is negative cos(x) if n has the sequence 3,7,11,15,19,…,difference of 4.
It can be easily shown that the nth derivatives of cos(x) follow similar alternating patterns of sin(x), cos(x),-sin(x), and –cos(x). Interestingly, the nth antiderivative of indefinite integrals where the integration constant is always zero follow similar reversible alternating patterns of sin(x), cos(x),-sin(x), and –cos(x). These similarities suggest certain circular infinities for both directions of differentiation and integration. The proof’s demonstrations can be carried out by term by term differentiation or integration of the alternating infinite power series expansions for both sin(x) and cos(x).


LinkBack URL
About LinkBacks
Reply With Quote




