Posted by Kate on Thursday, May 1, 2008 at 2:04pm.
Find the values of x for which the equation sin x = 1 is true
2 pi n
pi/2 + 2 pi n
pi + 2 pi n
3 pi/2 +2 pi n
Can someone please help. I don't understand how to do this.

Advanced Math  drwls, Thursday, May 1, 2008 at 4:09pm
Sin x = 1 when x is 270 degrees, which is 3 pi/2 radians. If you add (2 n pi) to that, where n is an integer, you get the same value for the sin.
Therefore the correct answer is the last one.
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