document.write( "Question 3441: What is the degree of an angle whose cosine is .86 \n" ); document.write( "

Algebra.Com's Answer #1557 by Pieter(35) $\"\"$ $\"About$

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You have to take the ANTICOSINE of 0.86
\n" ); document.write( "Here in my country we note is as Bgcos(0.86) but i guess you write the anticosine as arccos(0.86). On a calculator this is often noted as cos^(-1) (what is actually wrong!)\r
\n" ); document.write( "\n" ); document.write( "The angle will be 30°
\n" ); document.write( "(0.86 = (sqrt(3))/2, one of the common values you get in trigonomety)
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\n" ); document.write( "\n" ); document.write( "Greets \n" ); document.write( "

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