Answer:
Option B and D are correct that is [tex]y=secx[/tex] and [tex]y=cscx[/tex] respectively.
Step-by-step explanation:
We have been given four functions:
CaseA:
[tex]y=tanx[/tex]
[tex]\text{Period oftanx is} \pi[/tex]
Hence, A is correct.
CaseB:
[tex]y=secx[/tex]
[tex]\text{Period of secx is} 2\pi[/tex]
Hence, B is correct.
CaseC:
[tex]y=cotx[/tex]
[tex]\text{Period of cotx is} \pi[/tex]
Hence, C is not correct.
CaseD:
[tex]y=cscx[/tex]
[tex]\text{Period of cscx is} 2\pi[/tex]
Hence, D is correct.
