document.write( "Question 750672: tan^2(theta)-3sec(theta)+3=0
\n" ); document.write( "Solve for values on the unit circle in value of pi \n" ); document.write( "

Algebra.Com's Answer #456822 by lwsshak3(11628) $\"\"$ $\"About$

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tan^2(theta)-3sec(theta)+3=0
\n" ); document.write( "Solve for values on the unit circle in value of pi.
\n" ); document.write( "***
\n" ); document.write( " $\"tan%5E2%28x%29-3sec%28x%29%2B3=0\"$
\n" ); document.write( " $\"%28sin%5E2%28x%29%2Fcos%5E2%28x%29%29-3%2Fcos%28x%29%2B3=0\"$
\n" ); document.write( "LCD:cos^2(x)
\n" ); document.write( " $\"sin%5E2%28x%29-3cos%28x%29%2B3cos%5E2%28x%29=0\"$
\n" ); document.write( " $\"1-cos%5E2%28x%29-3cos%28x%29%2B3cos%5E2%28x%29=0\"$
\n" ); document.write( " $\"1-3cos%28x%29%2B2cos%5E2%28x%29=0\"$
\n" ); document.write( "2cos^2(x)-3cos(x)+1=0
\n" ); document.write( "(2cos(x)-1)(cos(x)-1)=0
\n" ); document.write( "..
\n" ); document.write( "2cosx-1=0
\n" ); document.write( "cosx=1/2
\n" ); document.write( "x=π/3, 5π/3 (in Q1 and Q4 where cos>0)
\n" ); document.write( "..
\n" ); document.write( "cosx-1=0
\n" ); document.write( "cosx=1
\n" ); document.write( "x=0 \n" ); document.write( "

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