Hello,

Isn't it true

A line can be normal and tangent to a curve

but not to a function ,

If it isn't

can you give an example ?

Thank U

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- October 26th 2008, 03:28 AMADARSHsimple geometry..
Hello,

Isn't it true

A line can be normal and tangent to a curve

but not to a function ,

If it isn't

can you give an example ?

Thank U - October 29th 2008, 08:07 AMpythag
A tangent is a line and a normal is a line. At a specific point on a curve (or function), the normal and the tangent to that point are perpendicular to each other. So at a point on a curve (or function), the normal and tangent are not the same line. For example, for two lines to be the same, they need to be at the very least parallel to each other.

- October 29th 2008, 08:41 AMADARSH...
(Shake) I meant the points are different