SOLUTION: If sinA is known to be 0.96, then what can be said about cosA? What if it is also known that angle A is obtuse?

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Question 1179679: If sinA is known to be 0.96, then what can be said about cosA? What if it is also known that angle A
is obtuse?
Answer by ikleyn(52788)   (Show Source): You can put this solution on YOUR website!
.

If sin(A) = 0.96,  then  cos(A) =  =  = +/- 0.28.



If A is an obtuse angle, then cos(A) is negative, so its value is  -0.28.


Solved, answered and explained.



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