I have a problem that I've been trying to solve for a couple of hours , but I'm just not understanding it.
The problem is asking to take the polar equation
r=\frac{4}{\cosθ + \sinθ}
and give an interval of θ in which the entire curve is generated.
I know that the equation ends up creating a diagonal line. But, how do you determine the interval for just a line? I think the answer is 0≤θ≤π; but I doubt that's correct. Can anyone tell me what steps I should take to get to the correct answer?
Many thanks in advance to anyone who can help.
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