Asked by ALISON

Write as an algebraic expression in u.
Tan(cos^-1 u)
Answered by Damon
right triangle
adjacent = u
hypotenuse = 1
so opposite = sqrt(1-u^2
so tan = opposite/adjacent = sqrt(1-u^2)/u
Answered by ALISON
Oh okay thanks!
Answered by Sheriff
Cos²∅= 13÷12.find 1+cot²∅