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It is minus 1

I did this: sinx/cos x = tan x

sinx x = cosx tanx

you have

(x - sinxcosx) / (tanx -x)

(x- cos^2 x tan x)/(tanx -x)

let x =0

-cos^2 x (tanx) /tanx =

-cos^x

-cos^2 (0) = -1

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Q: What is the limit of x- sin x cos x over tan x -x as x tends to zero?
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