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4 sin2 θ + 1 = 9 sin θ

 Mar 25, 2015

Best Answer 

 #1
avatar+128578 
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4 sin2 θ + 1 = 9 sin θ  

Look at the graph here.......https://www.desmos.com/calculator/bwainhhyz9

The solutions on [0, 2pi]   occur at about 29.5° and at 176.6°

These are repeated  at   29.5°  ± n360°   and at 176.6° ± n360°      where  n is an integer

 

  

 Mar 25, 2015
 #1
avatar+128578 
+5
Best Answer

4 sin2 θ + 1 = 9 sin θ  

Look at the graph here.......https://www.desmos.com/calculator/bwainhhyz9

The solutions on [0, 2pi]   occur at about 29.5° and at 176.6°

These are repeated  at   29.5°  ± n360°   and at 176.6° ± n360°      where  n is an integer

 

  

CPhill Mar 25, 2015

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