Some Standard Substitutions

continuity and differentiability of Class 12

Expression Substitution

Some Standard Substitutions x = a sin θ or a cos θ

Some Standard Substitutions x = a tan θ or a cot θ

Some Standard Substitutions x = a sec θ or a cosec θ

Some Standard Substitutions x = a cos θ or a cos 2 θ

Some Standard Substitutions x = a (1 - cos θ)

Critical Points

The points on the curve y = f(x) at which = 0 or does not exist are called critical points.
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