Polar Coordinates 13 • Intersecting/Complicated Areas • CP2 Ex5C • 🎯

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[Cajunchicken]

Thank you very much for this video, you explained it MUCH better than the textbook did.

[Samad-M]

At 14:52, the graph on the right, to find the area wouldn’t you integrate the blue curve from 0 to alpha (to give you that whole area) then subtract the the area of the red curve from 0 to alpha to give u the remaining area that u have shaded in red, then plus on the area on the blue curve from alpha to pi/2

[bob]

when do you need to find limits by doing r=0 and solving trig and when can you just use the angles on the axises? (pie, pie/2)?

[charliecohen]

For the first question, the graph for r=5cos(theta) includes negative values for r. How comes we didn't take that into account when we did the integration? Thanks

[vsingh]

For the question at 15:01, why is the limit for r=1+cos(theta) from alpha to pi instead of alpha to pi/2 ?

[kyedefriend]

When does the lesson come where you explain the hatred for the fraction button?

[khanish]

Hi sir I am a bit confused on q5 in exercise 5c for finding the intersection
r=asin2x
r=asin4x
leading to sin2x=sin4x
then in solution bank they jump to 4x=2x + 2kpi or 4x= pi - 2x +2kpi

If you could explain this it would be much appreciated!

[diabolicmaven]

Answer to question 15:05? Can't find this question online.