Question

if fx = sinx sec x then the value of f(pi/3)

Answer 1

f(π)=0;f(  2 3π ​  )=−1;f(0)=0 g(π)=−1;g(0)=1;g(  3 π ​  )=2 ∴  g(π)+g(0)+g(  3 π ​  )

f(π)−f(  2 3π ​  )+f(0) ​   =  2 1 ​