document.write( "Question 1162249: Find the exact values of sin(2θ), cos(2θ), and tan(2θ) when sin θ =-7/12 and 180∘ < 𝜃 < 270∘. \n" ); document.write( "
Algebra.Com's Answer #786008 by Edwin McCravy(20065)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Theo apparently does not know the meaning of \"exact value\".  It means\r\n" );
document.write( "NO DECIMALS!\r\n" );
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document.write( "[I corrected my typo for tan(θ), which was neither asked for nor needed.  My tan(2θ) was and is correct.]\r\n" );
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document.write( "We draw θ in QIII, with y (opposite side) =-7 and r (hypotenuse) = 12.\r\n" );
document.write( "We calculate x (adjacent side):\r\n" );
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document.write( "Since x goes left of the origin, we take the negative answer, \r\n" );
document.write( "\"x=-sqrt%2895%29\"\r\n" );
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document.write( "Then to calculate the trig ratios for 2θ, we will need\r\n" );
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document.write( "Edwin

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