Please let me know what your evil teacher thinks of it. He sounds like a moderator I know on another forum. If they are the same, he will absolutely hate my answer...

unlucky guy

2012-12-02 00:02:59

thanks

bobbym

2012-12-01 23:42:43

Hi unlucky guy;

One of the easiest ways is to find an obvious counterexample:

so sec(0) is 1 / 1 because cos(0) is 1.

because

unlucky guy

2012-12-01 23:19:33

my teacher is evil and won't explain everything. he wants brides and stuff like that... he gave only one easy example about trigonometric function and gave 48 exercises as a homework including problems.

please can u help me with this one...

prove that sin t + sec t = tan t is not an identity. and please with little bit more explanation about how you solving