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sin(40) = cos(3x)

 

whats the value of x

Guest Apr 10, 2018
edited by Guest  Apr 10, 2018
 #1
avatar+89729 
+1

sin (40)  = cos (3x)

 

These angles will sum to 90°  since they are co-functions....so...

 

40  + 3x  =  90      subtract  40  from both sides

 

3x  =   50     divide both sides by 3

 

x  = 50 / 3

 

 

 

cool cool cool

CPhill  Apr 10, 2018
 #2
avatar+428 
-1

x  = 50 / 3

jakesplace  Apr 10, 2018

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