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Find the value of theta, 0 < theta < 90, such that cos 5 = sin 75 + sin theta . answer is in degrees,  not radians

 Jul 24, 2021
 #1
avatar+34313 
+1

1.7345 degrees

 Jul 25, 2021
edited by Guest  Jul 25, 2021
edited by Guest  Jul 25, 2021
 #2
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Can you show me how? I do not get it.

Guest Jul 25, 2021
 #3
avatar+34313 
+1

I just used a calculator

 

sin theta =  cos 5 - sin 75

               =  .99619 -.96592

                = .0302688

 

arcsin (.0302688) = 1.7345 degrees

ElectricPavlov  Jul 25, 2021

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