stupidn38 stupidn38

18-10-2020
Mathematics

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Find Sin x and Tan x if Cos x=2/3 and Cot x >0. Evaluate without using calculator.

Respuesta :

18-10-2020

[tex]\sqrt5[/tex]Answer:

Sin^2 x + Cos^2 x = 1

Sin^2 x = 1 - 4 / 9 = 5 / 9

Sin x = [tex]\sqrt5[/tex] / 3

Tan x = Sin x / Cos x = ([tex]\sqrt5[/tex] / 3) / (2 / 3) = [tex]\sqrt5[/tex] / 2

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