document.write( "Question 649335: Find the exact value of trig functions of theta\r
\n" ); document.write( "\n" ); document.write( "sin (theta) = - 3/7 given that theta is in quadrant IV\r
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\n" ); document.write( "\n" ); document.write( "I don't understand how to rationalize the problem once I get to: cos = the square root of 1 - 3/49
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Algebra.Com's Answer #406930 by lwsshak3(11628)\"\" \"About 
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Find the exact value of trig functions of theta
\n" ); document.write( "sin (theta) = - 3/7 given that theta is in quadrant IV
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\n" ); document.write( "You are working with a reference angle and right triangle in given quadrant IV
\n" ); document.write( "sin=opp side/hypotenuse=-3/7
\n" ); document.write( "adjacent side=√(7^2-3^2)=√(49-9)=√40
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\n" ); document.write( "Trig Functions:
\n" ); document.write( "sin theta=-3/7
\n" ); document.write( "cos theta=√40/7
\n" ); document.write( "tan theta=-3/√40=-(3√40)/40
\n" ); document.write( "csc theta=-7/3
\n" ); document.write( "sec theta=7/√40=(7√40)/40
\n" ); document.write( "cot theta=-√40/3
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