Question

Find the general solutions of each of the following equations: cos x=1 ​

Answer 1

Step-by-step explanation:

$\cos(x) = 1 \\ \\ \cos(x) = \cos(0)$

Since,

$\cos( \theta) = \cos( \alpha ) \: \: implies \: \theta \: = 2n\pi \pm \alpha \: n \in \: Z$

the required general solution is

$x = 2n\pi \: where \: n \in \: Z$

Answer 2

Step-by-step explanation:

Hello dear...

$\cos(x) = 1 \\ \cos(x) = \cos(0)$

So,

$\cos(theta) = \cos( \alpha ) \\ = theta = 2n\pi + \alpha n \\ the \: required \: general \: soution \:is \\ x = 2n\pi \:$

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