Mathematics · essential
Continuity of elementary functions for JEE
Limits, continuity and differentiability
Formula
\[\text{Polynomials, exponential, sine, cosine are continuous on their domains; rational, logarithmic, tangent, cotangent, secant, cosecant are continuous wherever defined.}\]
Conditions: Exclude points outside domain or denominator-zero points.
Direct continuity conclusions without limit computation.