document.write( "Question 38729: A sine wave test generator is an electronics labaratory can deliver two sine signals to a prototype electronic circuit. The equations for the sine wave signals are known to be\r
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document.write( "Y1=4 sin^2 x+5 and y2 = 8 - sin x\r
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document.write( "find all values of x in degrees for which the two sine wave signals meet in the interval 0 deg greater or equal x less than 360 deg. (algebraic equation) \n" );
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Algebra.Com's Answer #27082 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Set them equal and solve...you can substitute y = sin x to make things easier... \n" ); document.write( "4 sin^2 x + 5 = 8 - sin x \n" ); document.write( "4y^2 + y - 3 = 0 \n" ); document.write( "(4y - 3)(y + 1) = 0 \n" ); document.write( "y = 3/4 and y = -1 \n" ); document.write( "sin x = 3/4 and sin x = -1 \n" ); document.write( "x = 46.8° and x = 270° \n" ); document.write( " |