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Last question

 Apr 24, 2019
 #1
avatar+106514 
+2

arcsin (0.3)  = 17.45° =  t

 

arccos(0.48)  =  61.31°  =  t

 

Looks like this one is False

 

 

Another way we can prove this

 

1 - sin^2 t  =  cos^2 t

 

1 - (0.3)^2  = (0.48)^2   ???

 

1 - .09  =  .2304  ????

 

.91  = .2304   ???......False

 

 

cool cool cool

 Apr 24, 2019
 #2
avatar+315 
+1

Thank you!! smiley

Cupcake  Apr 24, 2019

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