document.write( "Question 691536: Find the amplitude, period and phase shift of the function, and graph one complete period.\r
\n" ); document.write( "\n" ); document.write( "Y= 1 + COS(3X+pi/2)
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Algebra.Com's Answer #426761 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
The period can start at \"+cos%28+3x+%2B+pi%2F2+%29+=+1+\"
\n" ); document.write( "which would be at \"+y+=+1+%2B+0+\"
\n" ); document.write( "\"+cos%28+3x+%2B+pi%2F2+%29+=+1+\"
\n" ); document.write( "\"+3x+%2B+pi%2F2+=+0+\"
\n" ); document.write( "\"+3x+=+-pi%2F2+\"
\n" ); document.write( "\"+x+=+-pi%2F6+\"
\n" ); document.write( "-------------
\n" ); document.write( "The period ends at \"+cos%28+3x+%2B+pi%2F2+%29+=+1+\" again
\n" ); document.write( "when \"+3x+%2B+pi%2F2+=+2%2Api+\" (1 period)
\n" ); document.write( "\"+3x+=+2%2Api+-+pi%2F2+\"
\n" ); document.write( "\"+3x+=+%283%2Api%29%2F2+\"
\n" ); document.write( "\"+x+=+pi%2F2+\"
\n" ); document.write( "------------
\n" ); document.write( "Here's a plot of the function:
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