When bilirubin is increased above the reference range, what disease process should be suspected if liver disease is ruled out?

Suppose angle  and angle are in the first quadrant. If

Give the half-angle formula for 

G6pd is an rbc membrane deficiency.

Reticulocytes can be seen with Wrights Stain

If you take the Pythagorean identity

Find all the values of in the interval

The quantity   

Find all the values of x in the interval [0,2pi] that satisfy the equation

The half-angle formula for sine is derived from a double-angle formula for cosine.