oh and another question, which is on the def. of a derivitive, i just cannot remember the equation of a tangent line/equation of the normal line.
Hey guys im new here, but I have a test today and I need to understand trig limits better.
lim of x approaching 0
the hint that was given was "use the identity Lim x approaching 0
sinx = 1"
Where is the point in question and m is the slope. The equation of the normal line to this line contains , but its slope is the negative reciprocal of the original line.
For instance, if line K has a slope of 4, then the line that is perpendicular/normal to line k will have a slope of . Just remember that: