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sin(x)*cos(x)=.37115

Guest Feb 16, 2015

Best Answer 

 #1
avatar+17746 
+10

sin(2x)  =  2sin(x)cos(x)

Since  sin(x)cos(x)  =  0.37115,  2sin(x)cos(x)  =  0.7423.

Therefore,  sin(2x)  =  0.7423.

--->   2x  =  sin-1(0.7423)

--->   2x  =  49.9277°

--->     x  =  23.96°

geno3141  Feb 16, 2015
 #1
avatar+17746 
+10
Best Answer

sin(2x)  =  2sin(x)cos(x)

Since  sin(x)cos(x)  =  0.37115,  2sin(x)cos(x)  =  0.7423.

Therefore,  sin(2x)  =  0.7423.

--->   2x  =  sin-1(0.7423)

--->   2x  =  49.9277°

--->     x  =  23.96°

geno3141  Feb 16, 2015

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