Solve cot (x/2) = sqrt(3)/3 ?

2 Answers
May 16, 2018

I got 2pi/3

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Explanation:

explanation is in picture

May 16, 2018

x = (2pi)/3 + 2kpi

Explanation:

cot (x/2) = sqrt3/3
tan (x/2) = 1/(cot) = 3/sqrt3 = sqrt3
Trig table and unit circle give -->
x/2 = pi/3 + kpi
x = (2pi)/3 + 2kpi