document.write( "Question 738501: If angle A is acute and tanA is 2/3, them...\r
\n" ); document.write( "\n" ); document.write( "how do you get the answer of cot(90° − A) =2/3?
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Algebra.Com's Answer #450869 by lwsshak3(11628)\"\" \"About 
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If angle A is acute and tanA is 2/3, them...
\n" ); document.write( "how do you get the answer of cot(90° − A) =2/3
\n" ); document.write( "Say, you are working a 30-60 right triangle, for example:
\n" ); document.write( "let A=30º
\n" ); document.write( "tan(30º)=1/√3
\n" ); document.write( "cot (90-30)=cot(60º)=1/√3
\n" ); document.write( "I used 30º for this example, but it will work for any acute angle.
\n" ); document.write( "This identity also works for sin and cos functions.
\n" ); document.write( "sin 30º=1/2
\n" ); document.write( "cos (90-30)=cos(60º)=1/2
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