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# c3 trig watch

1. Q. y=arccosx , -1<x<1 and 0<y<pi ( the signs should have the equal to or more than...signs on them)

express arcsinx in terms of y

so far i have done cos y = x but i dont know what to do next. can someone help me please.
3. (Original post by klgyal)
Q. y=arccosx , -1<x<1 and 0<y<pi ( the signs should have the equal to or more than...signs on them)

express arcsinx in terms of y

so far i have done cos y = x but i dont know what to do next. can someone help me please.
Remember that from

See how this helps??
4. (Original post by nuodai)
Where does that come from ??
5. (Original post by klgyal)
Where does that come from ??
It's just a graph transformation that relates with .

That is, denotes a positive translation of parallel to the y-axis followed by a reflection in the y-axis (or a reflection in the x-axis followed by a negative translation parallel to the x-axis; both give the same result), and it just so happens that if you do this with the graph of you get the graph of
6. (Original post by nuodai)
It's just a graph transformation that relates with .

That is, denotes a positive translation of parallel to the y-axis followed by a reflection in the y-axis (or a reflection in the x-axis followed by a negative translation parallel to the x-axis; both give the same result), and it just so happens that if you do this with the graph of you get the graph of
thank-you

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