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  3. 1. if tan x = 4 then tan(-x) =2. if sin x = 0.7 th

1. If tan x = 4 then tan(-x) =2. If sin x = 0.7 then...

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1. If tan x = 4 then tan(-x) =2. If sin x = 0.7 then sin(-x) =3. If cos x = 0.5 then cos(-x)=4. If tan x 0.5 then tan(? + x) =

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