document.write( "Question 49322: Will sin(x) ever equal cos(x)? I do not need solutions. Also, does sin(x) = cos(x - $\"pi\"$ /2)? Explain. \n" ); document.write( "

Algebra.Com's Answer #32733 by Nate(3500) $\"\"$ $\"About$

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Yes, sin(x) will equal cos(x) eventually:
\n" ); document.write( " $\"graph%28600%2C200%2C-10%2C10%2C-1%2C1%2Csin%28x%29%2Ccos%28x%29%29\"$
\n" ); document.write( "Does sin(x) = cos(x - $\"pi\"$ /2) .... Yes
\n" ); document.write( "Remember: sin(x - 1) shifts horizontally -c units
\n" ); document.write( "sin( $\"pi\"$ /2) = 0
\n" ); document.write( "cos(0) = 0
\n" ); document.write( "So, sine is $\"pi\"$ /2 to the right of cosine.
\n" ); document.write( "Cos(x - $\"pi\"$ /2):
\n" ); document.write( " $\"graph%28600%2C200%2C-10%2C10%2C-1%2C1%2Ccos%28x+-+1.570796327%29%29\"$
\n" ); document.write( "Sin(x):
\n" ); document.write( " $\"graph%28600%2C200%2C-10%2C10%2C-1%2C1%2Csin%28x%29%29\"$ \n" ); document.write( "

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