document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1173059>Question 1173059</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the terminal point P ( x , y ) on the unit circle determined by the given value of t:\r<BR>\n" );
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document.write( "If t=π/2, then x =<BR>\n" );
document.write( "AND\r<BR>\n" );
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document.write( "y= </SPAN>\n" );
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document.write( "<font color=red>Answers: x = 0, y = 1</font>\r<BR>\n" );
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document.write( "The radian angle pi/2 is equivalent to 90 degrees. This angle points directly north, which corresponds to the point (0,1)<BR>\n" );
document.write( "I recommend you have a unit circle reference sheet with you. It could be a chart/table of values and/or an actual diagram of the unit circle. You can decide which is your preference.\r<BR>\n" );
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document.write( "Note how<BR>\n" );
document.write( "cos(t) = cos(pi/2) = 0<BR>\n" );
document.write( "sin(t) = sin(pi/2) = 1<BR>\n" );
document.write( "Make sure your calculator is in radian mode\r<BR>\n" );
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document.write( "It turns out that,<BR>\n" );
document.write( "x = cos(t)<BR>\n" );
document.write( "y = sin(t)<BR>\n" );
document.write( "So any (x,y) point on the unit circle can be described as (cos(t), sin(t))<BR>\n" );
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