trigonometry
posted by Betty
what is the graph of y= arccos(x2)

vii
find the grahp of cos(x2) first and then switch your x and y value, oh another thing with arc cos you have to limit it from one point to another or else its not a function anymore, so say a regular cos has 2pi for its period don't graph that whole 2pi for the arccos graph one pi only i don't know if im makign sense or not
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