document.write( "Question 689854: To whom it may concern,
\n" );
document.write( "what is the relationship between cotangent theta and cotangent NEGATIVE theta? Can you please give me 7 or 10 examples to work with. I really need to learn this immediately for an upcoming exam. Please reply ASAP. A thousand thank yous won't be enough.
\n" );
document.write( " -Lex
\n" );
document.write( "
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #426293 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! what is the relationship between cotangent theta and cotangent NEGATIVE theta? \n" ); document.write( "cot(x)=-cot(-x) (this is called an odd function, compared to an even function) \n" ); document.write( "Examples: \n" ); document.write( "pick angle of 45º in quadrant I \n" ); document.write( "this gives you a reference angle of 45º where cot 45º=1 \n" ); document.write( "-45º will also give you a reference angle of 45º but in quadrant IV where cot -45=-1 \n" ); document.write( ".. \n" ); document.write( "pick angle 135º in quadrant II \n" ); document.write( "this gives you a reference angle of 45º where cot135º=-1 \n" ); document.write( "-135º will also give you a reference angle of 45º but in quadrant III where cot-135º=1 \n" ); document.write( ".. \n" ); document.write( "pick angle 225º in quadrant III \n" ); document.write( "this gives you a reference angle of 45º where cot225º=1 \n" ); document.write( "-225º will also give you a reference angle of 45º but in quadrant II where cot-225º=-1 \n" ); document.write( ".. \n" ); document.write( "note: I used a reference angle of 45º for the examples but this will hold true for any reference angle. \n" ); document.write( "This will also hold true for the tan function since cot is the reciprocal of tan. \n" ); document.write( "A negative angle means rotating in a clockwise direction and a positive angle in a counter-clockwise direction.The value for the trig functions and their reciprocals is computed from the reference angle and the sign depends on which of the 4 quadrants the angle is in. See if you can apply this method to the sin and cos functions. \n" ); document.write( ".. \n" ); document.write( "Hope this helps! \n" ); document.write( " |