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what does tan2x equal when, x=-60 degrees?

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2*-60 is 120 so cos(-120) = \[\frac{ 1 }{ 2 }\] and sin(-120) = \[\frac{ -\sqrt{3} }{ 2 }\] tan is opp/adj which will then give you an exact answer of \[\sqrt{3}\]
tan = sin/cos
thanks so much, i wasn't sure if i could just multiply 2 by 60, or if i had to use the identity 2tanx/1-tan^2x

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Other answers:

as long as the 2 and x are together you are fine tan(2x)
what if it's tan2x? it didn't necessarily specify tan(2x)
That is fine also if the 2 was outside for example 2tan(x) then it would be different
ok sweet, thanks (Y)

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