# What is the equation of the line that is normal to the polar curve #f(theta)=theta- sin((5theta)/2-pi/2)+tan((2theta)/3-pi/2) # at #theta = pi#?

From the reference Tangents with Polar Coordinates we obtain the equation:

We are given:

Simplify to slope-intercept form:

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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- How do you find the polar coordinates of the point #(-2,0)# ?
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