Grade 12Integral CalculusCheck the monotonicity of f(x)=x÷sin x in (0,p÷2) KOTAKONDADINESH 12 Years agoGrade 12
Sher Mohammad12 Years agof'(x)=sinx-xcosx/(sinx)^2for small x, sinx=xf'(x)=x(1-cos x)> greater than zerofor higher values of x, also f'(x)>0, hence the function f(x) is monotonically increasing.Sher MohammadB.Tech, IIT Delhi