Question

secx sqrt 2

Answer 1

\[\sec x\sqrt{2}~?\]what do you want?

Answer 2

Sorry I'm not too sure how to work this yet. The equation is asking me to find all the answers for secx sqrt2. I have access to the answers which state pi/4+2npi or 7pi/4+2npi. I don't fully understand why there is the added 2npi. could anyone please explain where the 2npi came from? thank you!

Answer 3

because it does not only apply to \(\dfrac\pi4\), but also to \(\dfrac{9\pi}4\) and \(\dfrac{17\pi}4\) etc etc
so \(\left(\dfrac\pi4+2n\pi\right)\) would be a general formula

Answer 4

n usually refers to the number it rotates, \[2\pi\]is the measured angle for complete revolution...

Answer 5

Right! oh okay thank you all so much!! I get it now!

Answer 6

no problem :)

Answer 7

as long as we're online... :)