document.write( "Question 814022: Please help me solve: find the values of t, with 0 is less than or equal to t which is less than or equal to 2 pie, such that 2 sin (t) cos (t) = cos^2 (t) - sin^2 (t) \n" ); document.write( "

Algebra.Com's Answer #490147 by lwsshak3(11628) $\"\"$ $\"About$

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Find the values of t, for interval [0,2π] such that 2 sin (t) cos (t) = cos^2 (t) - sin^2 (t)
\n" ); document.write( "***
\n" ); document.write( "2sin(t)cos(t)=cos^2(t)-sin^2(t)
\n" ); document.write( "sin(2t)=cos(2t)
\n" ); document.write( "sin(2t)/cos(2t)=1
\n" ); document.write( "tan(2t)=1
\n" ); document.write( "2t=π/4,7π/4
\n" ); document.write( "t=π/8,7π/8 \n" ); document.write( "

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