1.The function f(x)=sec[log(x+1+x2)]f(x) = \sec\left[\log\left(x + \sqrt{1+x^2}\right)\right]f(x)=sec[log(x+1+x2)] isa.an odd functionb.an even functionc.neither an odd nor an even functiond.a constant functionLogin to continueOnly logged in users canattempt or see the solution.