Problem

Write the expression as an algebraic (nontrigonometric) expression in u,u>0.
tan(arccosu)
tan(arccosu)=
(Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression. Rationalize all denominators.)

Answer

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Answer

tan(arccosu)=1u2u

Steps

Step 1 :Given the trigonometric expression tan(arccosu), we are asked to express it in terms of u only.

Step 2 :We can use the identity tan(θ)=sin(θ)cos(θ).

Step 3 :Since cos(arccosu)=u, we can substitute θ with arccosu in the above equation.

Step 4 :We also know that sin(θ)=1cos2(θ). So, substituting θ with arccosu gives us sin(arccosu)=1u2.

Step 5 :Substituting these values into the identity for tan(θ) gives us the expression in terms of u only.

Step 6 :tan(arccosu)=1u2u

Step 7 :tan(arccosu)=1u2u

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