Circle Y is shown. Line segments X Y and Z Y are radii. The length of X Y is 16. Sector X Y Z of the minor angle is shaded.
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which means the parabola lies above the x-axis over its entire domain. This means the area is given by
The arcsine, 
, is the inverse of the 
function. This means that it takes as <em>inputs </em>what would usually be <em>outputs </em>for the function and produces as <em>outputs </em>what would usually be <em>inputs </em>for the function.
This can be particularly useful when you're trying to find an angle on a right triangle, but you've only been given the lengths of the sides. To find any angle
in a right triangle, just take 
, where o is the side opposite and h is the hypotenuse of the right triangle.
This can be particularly useful when you're trying to find an angle on a right triangle, but you've only been given the lengths of the sides. To find any angle