Question

find the domain of f(x)= (x)/(2cos(x+1))

Answer 1

For the domain to be true, the denominator cannot be zero. Therefore, what can you plug in for x that makes it zero?

Answer 2

yeah, but i know that cos can't equal -1/2 but what values would i use for radians

Answer 3

i need some help can you help me??

Answer 4

(2n+1)pi/2=x+1
=>x=((2n+1)pi/2)-(1)
these are the set of values where ur den =0
hope this hint is enough

Answer 5

\[m<=37
find m<1\]