document.write( "Question 920427: Refer to the graph of y = sin x or y = cos x to find the exact values of x in the interval [0, 4π] that satisfy the equation. (Enter your answers as a comma-separated list.)\r
\n" ); document.write( "\n" ); document.write( "9 sin x = −9\r
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Algebra.Com's Answer #558351 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi,
\n" ); document.write( "interval [0, 4π]
\n" ); document.write( "sin x = -1
\n" ); document.write( "x = π/6, 13π/6 (π/6 + 2π = 13π/6)
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\n" ); document.write( "(cosx, sinx) Summary Unit Circle
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