document.write( "Question 764203: if cos(theta) =1/2 find value of 2 sec(theta) divided by 1 plus tan square (theta) \n" ); document.write( "
Algebra.Com's Answer #465278 by stanbon(75887)\"\" \"About 
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if cos(theta) =1/2 find value of 2 sec(theta) divided by 1 plus tan square (theta)
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\n" ); document.write( "If cos(theta) = 1/2, x = 1 and r = 2
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\n" ); document.write( "So y = sqrt[2^2-1^2] = sqrt(3)
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\n" ); document.write( "Therefore, sec(theta) = 2
\n" ); document.write( "and tan(theta) = sin/cos = (sqrt(3))/(1/2) = 2sqrt(3)
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\n" ); document.write( "Your Problem:
\n" ); document.write( "2*sec(theta)/[1 + tan^2(theta)]
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\n" ); document.write( "= 2(2)/(1 + (2sqrt(3))^2)
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\n" ); document.write( "= 4/[1+12]
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\n" ); document.write( "= 4/13
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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