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How many petals does the graph of the rose curve r=4sin(3θ) have?

 May 1, 2020
 #1
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"How many petals does the graph of the rose curve r=4sin(3θ) have?"

 

 May 1, 2020
 #2
avatar+111438 
+1

Thanks, alan   !!!

 

Here's an easy way to remember this......

 

r  = asin (n θ)

or

r  = acos(n θ)

 

When n is odd.....the number  of petals  =  n

When n is even.....the number of petals  = 2n

 

So 

r = 4sin (3 θ)    has  n  odd....so....it will have n =  3 petals

 

cool cool cool 

 May 1, 2020
edited by CPhill  May 1, 2020

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