document.write( "Question 315384: 1) Evaluate the quadranatal angle csc π.
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document.write( "2)Using circle properties, find the value of tan (-11π/6)
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document.write( "3) Use periodic function to find the value of cos 11π/4
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document.write( "4) Find the value of sin 300 degrees
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document.write( "5) Using unit circle properties, find the value of cos π/3 \n" );
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Algebra.Com's Answer #225665 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! In the unit circle, x^2 + y^2 = 1 \n" ); document.write( "So, x = sqrt= (1-y^2) \n" ); document.write( "and y = sqrt(1-x^2) \n" ); document.write( "and r = 1 \n" ); document.write( "-------------------------\r \n" ); document.write( "\n" ); document.write( "1) Evaluate csc π. \n" ); document.write( "Since sin(pi) = 0, csc(pi) is undefined \n" ); document.write( "------------------------- \n" ); document.write( "2)Using circle properties, find the value of \n" ); document.write( "tan (-11π/6) = tan(2pi -11pi/6) = tan(pi/6) = 1/sqrt(3)\r \n" ); document.write( "\n" ); document.write( "------------------------------------------------------------\r \n" ); document.write( "\n" ); document.write( "3) Use periodic function to find the value of \n" ); document.write( "cos (11π/4) = cos((11pi/4)-2pi) = cos(3pi/4) = -cos(pi/4) = -sqrt(2)/2\r \n" ); document.write( "\n" ); document.write( "-----------------------------------\r \n" ); document.write( "\n" ); document.write( "4) Find the value of \n" ); document.write( "sin 300 degrees = sin(-60) = -sin(60) = -sqrt(3)/2\r \n" ); document.write( "\n" ); document.write( "-------------------------------------\r \n" ); document.write( "\n" ); document.write( "5) Using unit circle properties, find the value of \n" ); document.write( "cos (π/3) = 1/2 \n" ); document.write( "=========================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |