Class XI Mathematics

Chapter 12: Limits and Derivatives

Standard NCERT & CBSE aligned study curriculum. Master concepts, track accuracy, revise weak areas, and challenge yourself with 9 customized practice modes.

Key Formulas & Equations

Click Copy to duplicate

Standard Trig Limit

sin θcos θθ
\lim_{x \to 0} \frac{\sin x}{x} = 1

Fundamental trigonometric limit.

Quotient Rule of differentiation

Point P(x, y)Tangent Slope = dy/dx
\frac{d}{dx}\left(\frac{u}{v}\right) = \frac{u'v - uv'}{v^2}

Differentiates division of two functions.

Related Formulas from Adjacent Chapters

3D Distance Formula

d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2 + (z_2-z_1)^2}

[From Introduction to Three Dimensional Geometry] Euclidean distance between two coordinates in 3D space.

Grouped Variance

\sigma^2 = \frac{\sum f_i(x_i - \bar{x})^2}{N}

[From Statistics] Variance of grouped frequency distribution.

Standard Deviation

\sigma = \sqrt{\sigma^2}

[From Statistics] Square root of variance, measuring dispersion in original units.