Nanis80idn
Answered

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cosx = [tex]\sqrt{2} /2[/tex] , x= pie/4

using substitution how would pie/4 be a solution

Sagot :

Nfeinglass910idn
Explanation:

You need to use the unit circle. Once you have one pulled up, find the angles for which the cosine equals Pi/4.

Brainliest would be appreciated. :)
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