Answer:
Continuity
of cosine function : Let f(x) = cos x and , then
is a
continuous function.
Continuity
of Cosecant Function :
Let
f(x) =
Where
g(x) = 1, a constant function is continuous and h(x) = sin x is continuous
everywhere.
is the
quotient of two continuous function.
is
continuous in its domain (sin )
Continuity
of secant function : Let f(x) = sec x being
quotient of a constant and cosine function, secant function is continuous in
its domain.
Continuity
of cotangent function : Let f(x) = cos
Since
cosine and sine function are everywhere continuous, therefore being quotient of
two continuous function, f is continuous (provided sin x
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