document.write( "Question 521214: Find the exact value of the expression. Do not use a calculator. Cos^-1[cos(-5pi/4)]. And. Tan^-1[(-pi/4)]. \n" ); document.write( "
Algebra.Com's Answer #346392 by stanbon(75887)\"\" \"About 
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Find the exact value of the expression.
\n" ); document.write( "Do not use a calculator.
\n" ); document.write( "Cos^-1[cos(-5pi/4)] = -5pi/4
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\n" ); document.write( "And. Tan^-1[(-pi/4)] = ?
\n" ); document.write( "Cannot be done without a calculator.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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