document.write( "Question 578169: In class we are learning how to find the six trigonometric functions when given a point P of angle theta. If the function is undefined we write \"undefined\". My problem is I am given point P(-3,0). This is on the 180 degree mark on the unit circle and I don't know how to find the trig functions of it. Please help me! \n" ); document.write( "

Algebra.Com's Answer #370557 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
The way I do this ( and I'm really serious ), is
\n" ); document.write( "I imagine a line from the center of the circle
\n" ); document.write( "getting closer and closer to the 180 degree line.
\n" ); document.write( "(1) What is happening to the sin(theta)?
\n" ); document.write( "It's getting closer and closer to 0/1, until it
\n" ); document.write( "finally equals zero ( opposite/hypotenuse)
\n" ); document.write( "(2) What is happening to the cos(theta)?
\n" ); document.write( "It is getting closer to 1/1, until it finally
\n" ); document.write( "becomes 1
\n" ); document.write( "(3) What happens to tan(theta)?
\n" ); document.write( "It is getting closer to 0/1 until it becomes
\n" ); document.write( "zero
\n" ); document.write( "(4) cot(theta) gets closer to 1/0, which is infinity
\n" ); document.write( "This is an asymptote
\n" ); document.write( "-----------------
\n" ); document.write( "Use this for the other functions
\n" ); document.write( "This really helps me. I hope it works for you.
\n" ); document.write( " \n" ); document.write( "

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