y=cos (3x) invertible?
Yes but on a fixed domain
arccos(x) = 3y
y = arccos(x) / 3
is the inverse function
-1 < x < 1
yes in 0< x<pi
i wish i knew
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Yes but on a fixed domain
arccos(x) = 3y
y = arccos(x) / 3
is the inverse function
-1 < x < 1
yes in 0< x<pi
i wish i knew