SOLUTION: cos (x) = 1 / sqrt 2
Algebra
.Com
Question 1198715
:
cos (x) = 1 / sqrt 2
Answer by
ikleyn(52847)
(
Show Source
): You can
put this solution on YOUR website!
.
Given
: cos(x) =
=
.
ANSWER
: x =
or x =
(two solutions).
That's all.
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