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honorstrigstudent
Cos (90-34)°=sin (34°) So Cos (56°)=Sin(34°)
jcherry99
Short Answer 56
Remark
There are at least two ways of doing this. We can try them both. 
Step One
Find the Sin (34)
Sin(34) = 0.5592

Step Two
Find Cos(x)
x = cos-1(0.5592)
x = 56 degrees.

That's one way. 
Another is just to do this
90 - 34 = 56
This is much simpler.
so x = 56

cos(56) = 0.5592
sin(34) = 0.5592

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