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What is the sec^2 (pi/3)?

2 Answers

Sep 7, 2015

#sec^2(pi/3) = 4#

Explanation:

#sec(pi/3) = 1/cos(pi/3)#

#color(white)("XXXX")= 1/(1/2) = 2#

#sec^2(pi/3) = 2^2 = 4#
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Sep 7, 2015

#sec^2# #pi/3# = 1/ [#cos^2##pi/3# ] = 1/#(1/2) ^2# = 4

Explanation:

cos#pi/3# =1/2

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