Question 641828
sec (pi/4) + 8 csc (pi/6) = ?
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Since cos(pi/4) = sqrt(2)/2, sec(pi/4) = 2/sqrt(2)
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Since sec(pi/6) = 1/2, csc(pi/6) = 2
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Your problem:
 = 2/sqrt(2) + 8(2)
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= (sqrt(2))/2 + 16
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= (32+sqrt(2)/2
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Cheers,
Stan H.