Question

*** WILL GIVE MEDAL! ***

Which value of x is not in the domain of the function defined by y = tan x?

(1) 2pi/3
(2) pi/2
(3) pi
(4) pi/3

Answer 1

tan(x) = sin(x) / cos(x) you know that, correct?

Answer 2

Yes

Answer 3

whatever value(s) of x that make(s) the denominator ( the cos(x) ) be equal to 0, is/are the value(s) where the function y is undefined.

Answer 4

(( In other words, those values of x that make the denominator be equal to 0 are not in the domain of the function ))

Answer 5

The answer is pi/2 , but how do I get to that? Still confused

Answer 6

@SolomonZelman @phi

Answer 7

do you know what \(\normalsize\color{black}{ \displaystyle \cos(\pi/2) }\) is?

Answer 8

0

Answer 9

Ohhhhhhhh

Answer 10

any questions ?

Answer 11

Not at this time, thank you!