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How do you solve $cos(t+pi/6)=1/2$ ?

1 Answer

Harish Chandra Rajpoot

Jul 24, 2018

$t=2k\pi\pm\pi/3-\pi/6$
Where, $k$ is any integer

Explanation:

$\cos(t+\pi/6)=1/2$

$\cos(t+\pi/6)=\cos(\pi/3)$

$t+\pi/6=2k\pi\pm\pi/3$

$t=2k\pi\pm\pi/3-\pi/6$

Where, $k$ is any integer i.e. $k=0, \pm1, \pm2, \pm3, \ldots$

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