sub in for to determine x and y
Find the rectangular form of the equation of the tangent line to the polar curve at the point corresponding to
How to do that?
I mean finding it in RECTANGULAR FORM !
i know that
I will calculate at , and this is easy ..
The problem here is that, how can I find the equation of the tangent line in RECATNGULAR FORM ??
The equation of the tangent line is :
m = the slope , and this one will be calculated by using the formula ..
but what about x1 and y1?