Question

secant of (13pi)/2

Answer 1

13pi/2 is the same as pi/2 right? (2pi = 4pi/2)
12pi/2 = the same as 2pi.
SO the secant of pi/2) will be the same as the secant of 13pi/2

OK?

and the secant is the reciprocal of the cosine. What is the cosine of pi/2?

Answer 2

cosine of pi/2 is 0

Answer 3

and the reciprocal of that because we need the secant, will be?

Answer 4

that would just be 1/0 which is undefined right?

Answer 5

right on:-)

Answer 6

thanks!

Answer 7

k! good luck with it.

Answer 8

thank you

Answer 9

how do i find cosecant of 13pi/2

Answer 10

cosecant is reciprical of sine right?

Answer 11

nevermind i got it