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Consider the equation cos(2.00t) = -0.1. Find the smallest possible solution in radians and round to 2 decimal places.

Deathstroke_rule  Apr 26, 2017
 #1
avatar+87301 
+2

cos(2t)   =   -1/10

 

arccos ( -.1)   = 2t   ≈  1.67 rads     

 

So    

 

2t  =  1.67  rads

t  ≈  .835 rads  = .84 rads

 

 

cool cool cool 

CPhill  Apr 26, 2017

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