NCERT Example 9 - Application of Derivatives
Question: Prove that f(x)=cos x is decreasing in (0,pi) and increasing in (pi,2pi), as stated.
Answer: Proved using f'(x)=-sin x.
Full step-by-step NCERT solution with diagrams on Something by Zero.
Question: Prove that f(x)=cos x is decreasing in (0,pi) and increasing in (pi,2pi), as stated.
Answer: Proved using f'(x)=-sin x.
Full step-by-step NCERT solution with diagrams on Something by Zero.