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Find all solutions of the equation in the interval [0 degrees, 360 degrees). Round your answers to the nearest tenth of a degree.

 

cos 0=.8

 

x=____???

 May 13, 2020
 #1
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+3

cos θ  = (8/10)

 

Take  the  arccos  to  find the  angles

 

arcos (8/10) = θ  ≈  36.9°

 

The other  value is   360 - 36.9  =  323.1°

 

 

cool cool cool

 May 14, 2020

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