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Homework answers / question archive / Simplify the expression

Simplify the expression

Math

Simplify the expression.

tan(sin-1(x))

pur-new-sol

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Lets assume:    , 

So we need to find : 

we use trig identities: cos2 θ = 1- sin2 θ   = 1-x2

   ,  Since    cosθ

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