1.f(x)=1−sinx+cosx1+sinx+cosxf(x)=\frac{1-\sin x+\cos x}{1+\sin x+\cos x}f(x)=1+sinx+cosx1−sinx+cosx cont at π\piπ, f(π)=f(\pi)=f(π)=a.−1/2-1/2−1/2b.-1c.1d.1/21/21/2Login to continueOnly logged in users canattempt or see the solution.