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Figure 31 : Petals of R=sin(3.1*A)
Product no. Program ABG 01 08

Q1. Find number of petals of r=sin(3.1*A) ?
    * Let 3.1=31/10
    * Then r=sin(3.1*A)=sin(31*A/10)
    * That is p=31 and q=10 and M=1 in r=sin(p*A/q)
    * Since p is odd, q is even and M is odd
    * Hence it has 62 petals and cycle domain is 20*pi

Q2. Can we get a rule from Q1 ?
A2. Yes
  • If p=odd, q=even and M=odd
  • The number petals is 2*p
  • Cycle domain is 2*q*pi


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