Question

i need help with this question:

next post attached file is the question, would be a bit too complicated to type out o:

Answer 1

the question:

Answer 2

What is your problem? Just put 0 in for x and count the values. Sec is 1/cos.

Answer 3

sub sub it in, no where do you divive by zero

Answer 4

sec(0) = 1/ cos(0) = 1/1 =1

Answer 5

also know that tan(-5pi)=0

Answer 6

once you sub it in it just simplifies down to \[5\pi\] as the answer