at which value will the graph of y= sec x have a zero?
A.) pi/2
B.) pi/4
C.) pi/3
D.) None

2 Answer

  • D: None of the Above
  • Answer:

    Correct option is D.

    Step-by-step explanation:

    Given the graph y=sec x

    we have to choose the value at which the value of y is 0.

    as, [tex]sec x=\frac{1}{cos x}[/tex]

    Option A.) [tex]\frac{\pi}{2}[/tex]


    Option B.) [tex]\frac{\pi}{2}[/tex]

    [tex]y=sec{\frac{\pi}{4}}=\frac{1}{cos{\pi}{4}}=\frac{1}{\frac{1}{\sqrt 2}}=\sqrt2[/tex]

    Option C.)  [tex]\frac{\pi}{3}[/tex]


    No option above gives the value 0

    Hence, the correct option is D.