Question

Can someone help me:

Answer 1

a simple solution is to graph it

https://www.desmos.com/calculator

Answer 2

he said graph it but when I did it proved blank

Answer 3

@Michele_Laino

Answer 4

you probably didn't use the appropriate values for the axes
try large values of y like -200 to 200 and x -2pi to 2pi

Answer 5

hint:
a function f(t) is periodic with period T, if checks this condition:
\[f\left( {t + T} \right) = f\left( t \right)\]

Answer 6

now, if wqe apply that condition, to our function, we to solve this equation for T
\[\frac{2}{{\sin \left( {t + T + \frac{\pi }{4}} \right)}} - 1 = \frac{2}{{\sin \left( {t + \frac{\pi }{4}} \right)}} - 1\]

Answer 7

we*

Answer 8

from the graph it looks like the start is at -pi/4

Answer 9

is your question asking for the period T, of your function?

Answer 10

i think it wants one starting value of x

Answer 11

heere is the graph of the cosec x function: