document.write( "Question 1034534: Write each equation in the form of an inverse function.
\n" ); document.write( "1. B = cos a
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\n" ); document.write( "3. y = tan 120
\n" ); document.write( "4. -1/2 = cos x
\n" ); document.write( "5. sin 2pi/3 = square root 3/ 2
\n" ); document.write( "6. cos pi /3 =1/2 \n" ); document.write( "

Algebra.Com's Answer #649194 by ikleyn(52786) $\"\"$ $\"About$

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document.write( "1. B = cos a                      a = arccos(B)  ( + , for generality)\r\n" );
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document.write( "2. tan B = a                      B = arctan(a)  ( + , for generality)\r\n" );
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document.write( "3. y = tan 120                    120° =  - arctan(y)   ( think why it is so )\r\n" );
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document.write( "4. -1/2 = cos x                   x = arccos()   ( + , for generality)\r\n" );
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document.write( "5. sin 2pi/3 = square root 3/ 2    =  - arcsin()    ( think why it is so ! )\r\n" );
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document.write( "6. cos pi /3 =1/2                  = arccos()\r\n" );
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