Question
Why doesn't cot^2 x + 1 = csc^2x work for 180 degrees in place of x?
Please help,I don't know why it doesn't work.
Thanks!
Please help,I don't know why it doesn't work.
Thanks!
Answers
oobleck
because csc 180 and cot 180 undefined.
sin 180 = 0, so csc and cot are undefined there.
sin 180 = 0, so csc and cot are undefined there.