Question 1000755
Let ∠X and ∠Y be complementary. If sin(X) = 
3
5
 and cos(X) = 
4
5
, then what is the value of sin(Y)?
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Are those supposed to be fractions?
sin(x) = 3/5
cos(x) = 4/5  Do them like that.
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If they're complementary:
sin(y) = cos(x) = 4/5