5m Zen
5 sec theta
5 sec theta pictures 5
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5 sec theta
if 3 sec theta 5 0
sec theta 13 5
if sec theta 5 3
cos theta sec theta 5 2
sec theta 5 4
sec 90 theta )u003d 5 3
sec theta tan theta 5
if 5 sec theta
5 sec theta
5 sec theta-1 2 cos thetau003d0
