PreCalc
posted by LaTidra .
Write an algebraic expression that is equivalent to the expression (Sketch right triangle)
sec[arcsin(x1)]

An angle whose sine is x1 has a cosine of sqrt[1 (x1)^2]' = sqrt(x^2+2x)
Its secant is 1/sqrt[x(2x)]
x is limited to numbers between 0 and 2.