Use Trigonometry Identities to replace with equations we are familiar with, after substitute the limit in and solve
Identities applied with limits
lim sin(x) = sin(a) x -> a
lim cos(x) = cos(a) x -> a
lim tan(x) = lim = x -> a x -> a
lim csc(x) = x -> a
lim sec(x) = x -> a
lim cot(x) = x -> a
Example Problems
