
Kathy G. answered 11/01/15
Tutor
5.0
(129)
HOMEWORK HELP when you need it.
remember that the sec is the reciprocal of the cos.
So Sec 13pi/11 would be 1 over the cos 13pi/11.
1
cos 13pi/11
Use your calculator to get that.
If you need help getting the final answer let me know. :-)

Kathy G.
Yes I agree! Good job! :-)
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11/01/15
Kevin M.
11/01/15