A normal line to a curve at a given point is a straight line perpendicular to the tangent line at that point. It is used in various fields like physics and engineering to analyze forces and angles relative to surfaces or curves.

Normal Line

normal line to a curve

straight line

A tangent line to a curve at a given point is a straight line that just touches the curve at that point, having the same direction as the curve's slope there. It is used in calculus to approximate the curve near that point and is fundamental in understanding instantaneous rates of change and derivatives.

tangent line

given point

analyze forces

Analyze angles

relative to surfaces

Relative to curves

Formation of Images by Lenses

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Relevant Degrees