Discuss the continuity of the cosine, cosecant, secant and cotangent functions.
Answer»
Answer :Cosine FUNCTION is CONTINUOUS for all `x in R`; cosecant is continuous EXCEPT for `x= npi, N in Z`; secant is continuous except for `x= (2n+1)(pi)/(2), n in Z` and cotangent function is continuous except for `x= npi, n in Z`.