limits infinity trig functions
Section 1.4, Limits involving inï¬nity p. 45 (1/3/08) The trigonometric functions do not have limits as x â Â±â because they are periodic. The inverse. sine and cosine functions do not have limits as x â Â±â because they are deï¬ned only for â1 â¤ x â¤ 1. The.