Trig little problem

JorhLopez

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Joined
Oct 5, 2020
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Hi, I have a little problem that I can't resolve, here it is:
knowing that: cosx . sinx = 1/2
obtain using trigonometric identities
tgx + cotgx =?
 
[MATH]\sin{x}\cos{x} = \dfrac{1}{2} \implies 2\sin{x}\cos{x} = 1[/MATH]
does [MATH]2\sin{x}\cos{x}[/MATH] look familiar to you w/regard to an identity?
 
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